I switched about 10 years ago and can still touch type qwerty as well (and need to do so fairly often). I haven't seriously considered going back, but I don't k

I switched about 10 years ago and can still touch type qwerty as well (and need to do so fairly often). I haven't seriously considered going back, but I don't know that there is even any ergonomic advantages much less speed ones. I think the most relevant thing is that it might actually be worse for programming, both from the symbols and from qwerty-optimized hotkeys. I use vim with most of the regular bindings which is designed as a combination of mnemonics (which are still fine) and qwerty layout (which obviously just end up in a random spot, though j and k happen to still be together but not in the home row).