Do Custom Keycaps Actually Improve Your Typing Speed?

The Keycap Rabbit Hole I Fell Into

It started with a Reddit thread. Someone posted a photo of their pastel rainbow keycap set on a Keychron Q1 and the comment section lost its mind — half the people saying it was gorgeous, the other half insisting that spending Rs 4,000 on keycaps was the biggest waste of money in keyboard hobby history. I'm in the second camp, mostly. But I was curious enough to actually test it.

So I pulled three keyboards off my desk — a Keychron K2 with stock PBT keycaps, a budget RK84 with thin ABS caps, and a Ducky One 3 with doubleshot PBT — and I ran two weeks of typing tests. We're talking around 200 individual test sessions across TypingFastest's practice mode, swapping keycap sets between keyboards and tracking the WPM differences carefully. Not scientific in a PhD-paper sense, but methodical enough that the patterns were clear.

Here's the thing nobody in these forums says plainly: keycap profile matters way more than keycap material. The difference between ABS and PBT is mostly about feel and sound, not speed. But the difference between a flat profile like DSA and a sculpted profile like Cherry or OEM? I felt that in my WPM within the first three days.

Keycap Profile — The Thing That Actually Moves Numbers

Keycap profile refers to the shape — specifically the height and angle of each row. This sounds like a nerdy detail that shouldn't matter, but your fingers have memorized key positions. Change the topography significantly and you're essentially relearning a small part of muscle memory.

DSA keycaps are completely flat and uniform across all rows. SA keycaps are tall and spherical. Cherry profile sits somewhere in the middle with a slight sculpt. OEM — what ships on most mainstream keyboards — is a bit taller than Cherry with more row-to-row variation.

My results: switching from OEM to DSA knocked about 4-6 WPM off my average for the first five days. Not because DSA is worse, but because my fingers expected a certain height at the function row and suddenly it wasn't there. By day eight I'd mostly adapted. By day twelve I was back to baseline.

Switching from OEM to SA (tall, spherical) was harder. I lost almost 8 WPM initially and it took nearly three weeks to fully adapt. The tall caps force your fingers to travel slightly higher, and that tiny extra distance compounds across thousands of keystrokes.

So does profile matter? Yes — but only temporarily. If you want to avoid any disruption to your WPM, stick with whatever profile you're already used to. I'd only switch if you have a specific ergonomic reason (some people love SA for reducing finger impact) and you're willing to take a 2-3 week performance hit.

ABS vs PBT — What Actually Happens to Your Fingers

Photo by Unsplash / Unsplash

ABS (acrylonitrile butadiene styrene) is the cheaper plastic. It's lighter, it shines up over time, and on cheap keyboards the legends (the letters) get worn and greasy within months. PBT (polybutylene terephthalate) is denser, more textured, and resists shine almost indefinitely. The legends on doubleshot PBT are literally part of the keycap structure, so they never fade.

From a pure typing-speed standpoint? I measured an average difference of about 1.2 WPM between identical profiles in ABS vs PBT. That's within measurement noise. So if someone's telling you PBT makes you faster, that's not backed up by the numbers I ran.

What PBT does do is feel more consistent under the fingers. My friend Priya, who types around 85 WPM, switched from a laptop keyboard to a board with thick PBT keycaps and said it felt like "the keys were actually where I expected them to be." Her WPM went up by about 6 points — but that's the keyboard switch talking, not the PBT specifically.

Shininess is the real enemy of ABS for typing. Once cheap ABS caps get greasy, your fingers lose some of that tactile feedback about key position. I've tested this with a set of worn-out ABS caps versus a fresh identical set. Fresh ABS slightly outperformed — about 2 WPM — which suggests surface texture does matter a bit once it degrades.

Basically: PBT is worth it for longevity. It'll save you from having to replace your caps every year. But don't buy a Rs 6,000 PBT set expecting your WPM to jump 10 points. It won't.

Legends, Colors, and Contrast — Do They Help?

Here's a fun one. I used to insist I didn't look at the keyboard when I typed. I was wrong.

I'm technically a touch typist — I learned the home row method and my eyes mostly stay on the screen. But when I ran tests with blank keycaps (keycaps with no printed legends), my WPM dropped by 3-5 on average for the first week. That was humbling. Turns out my brain occasionally glances to confirm position even if I think it doesn't.

Contrast between legends and keycap body color matters more for slower typists than fast ones. Someone at 40 WPM who still glances regularly will genuinely perform worse on all-black legend-less caps compared to white-on-black legends with good contrast. Once you're solidly above 70 WPM and truly not looking? Less difference.

Novelty sets — those gorgeous keycap sets with custom art, pixel characters, and color gradients — are fine to use if you love how they look. But I'd avoid sets where the legend color blends into the keycap body. Dark gray on black with no contrast is a recipe for occasional hesitation.

The sweet spot for performance is high-contrast legends (white on dark or dark on white) with a sculpted profile you're familiar with, in PBT material. That's not a Rs 15,000 artisan set. That's a Rs 2,500 quality PBT doubleshot and you're done.

I've compared a few affordable setups in my post on the best mechanical keyboards for typing speed if you want the full picture on switches, boards, and caps together.

The Typing Speed Variables That Actually Matter More

I want to be honest here because the keyboard hobby loves to sell you on gear. Keycaps are genuinely one of the least impactful variables in your typing speed.

Switch type matters much more. Linear vs tactile vs clicky changes your typing rhythm, actuation force, and reset point. Most speed typists prefer linear switches — they're smooth, fast, and allow rapid double-tap inputs. I've seen 10-15 WPM differences between the same person on a 35g linear versus a 80g tactile. That's real.

Actuation force is underrated. Heavy switches (above 60g) cause more finger fatigue over long sessions, which tanks your WPM in the 20-40 minute range. Light switches (below 40g) can cause accidental keypresses if you're used to heavier boards.

Board stiffness and sound affect your psychological sense of speed. A bouncy, hollow-sounding board can make you feel faster than you are (or slower). When I race in TypingFastest multiplayer races, I genuinely type a bit faster on my gasket-mount Keychron Q1 than on my plate-mount budget board, even with identical keycaps. The feedback loop feels tighter.

And look — I know it's fun to obsess over keycaps. The hobby is addictive. But if you're at 55 WPM and want to hit 70, spending time in the practice mode every day will get you there in four to six weeks. No keycap upgrade will do that.

What I'd Actually Recommend

If you already have a decent keyboard, don't swap keycaps for speed gains. They're not coming.

If your current keycaps are thin, shiny ABS that's been worn down over years, replacing them with quality PBT doubleshot keycaps in the same profile will restore a clean tactile surface and could get you 1-2 WPM from reduced finger slip. That's about the realistic ceiling of the gain.

If you're getting a new board and want to choose wisely: Cherry or OEM profile is the safest bet because it's what most people's fingers have learned on. Stay away from ultra-tall SA or ultra-flat DSA until you've built solid touch-typing habits you can rebuild from if needed.

Spend your upgrade budget on switches first, then stabilizers (nothing tanks typing enjoyment like rattling stabilizers), and keycaps last. That hierarchy will get you actual WPM improvements.

One thing I genuinely didn't expect from this whole experiment: tracking my tests carefully forced me to pay attention to consistency rather than just chasing high scores. Turns out I'm more accurate in the mornings. My afternoon sessions consistently run 4-6 WPM lower regardless of which keycaps I'm using. That's data worth having.

The Community Takes Hot Takes and What They Get Wrong

The mechanical keyboard community — r/mechanicalkeyboards has over 900,000 members as of 2026 — is genuinely passionate but sometimes loses sight of the typing-speed angle in favor of aesthetics and hobby enthusiasm. That's totally fine if aesthetics are your goal. But it leads to some advice that's misleading when speed is the actual objective.

Claim you'll often see: "PBT keycaps feel better and will improve your typing." What this actually means: PBT has a more consistent texture that feels nicer. The WPM improvement is marginal at best. "Feel better" doesn't equal "type faster."

Claim: "Artisan keycaps on your Escape key help focus." Hmm. I've never seen a measurable WPM difference from an artisan Escape key. It looks cool. That's the benefit.

Claim: "Low-profile keycaps are faster because less travel." Partially true — reduced travel does mean slightly less finger movement per keystroke. But the difference in travel between standard and low-profile is about 2-3mm. At 80 WPM, you're pressing roughly 400 keys per minute. The time savings from 2mm less travel per keystroke is genuinely tiny — under 1 WPM in most measurements. The tactile feedback reduction that comes with low-profile is a bigger factor for some people, and not always in the positive direction.

The Keyboard University guide on keycap profiles is one of the better neutral resources on understanding profile differences without the marketing spin. Worth reading if you're deep in the research phase.

For competitive typists on platforms like TypingFastest or in tournaments, the hardware choices that get scrutinized most are switches and keyboards — not keycaps. No top-ranked typist credits their ranking to their keycap choice. They'll talk about switches, practice routines, and consistency. That tells you where the real gains live.