[garren]

I’ve got the classic ergodox (a couple) as well as the ergodox-ez. I’ve been using ergodox for 5-6 years now and have never had an issue with the thumb cluster, but it takes some getting used to, and there is certainly room for improvement.

I’m a huge fan of the split layout, and I feel that split layouts are probably a much more significant factor when it comes to reduction of hand stress.