Two years of 8-hour days at 110 WPM are starting to show in my left wrist. I'm ready to invest in a real split ergo. ZSA Voyager, Moonlander, Keychron Q11, Kinesis Advantage 360 — which one for someone who values speed but also doesn't want to relearn typing from scratch?
Voyager if you want flat + small + portable. Advantage 360 if you want concave keywells and the strongest ergonomic case (literally — they have published medical case studies). Avoid the Moonlander for new ergo users — the tenting + ortholinear combination is a 2-3 month relearn. Q11 is the budget-friendly entry but its layout is closer to a regular keyboard, so the ergo benefit is partial. For pure speed retention with strong ergonomics, my pick is the Voyager.
If you've never used an ortholinear layout, expect to drop to 60% of your speed for 2–3 weeks regardless of which split you pick. Don't make the switch under deadline pressure. Vacation time or a quiet week is the right moment.