[rcoveson]

I'm confused by this subthread. Are people hitting the Spacebar-adjacent modifier key with their index finger? It's meant to be hit with the thumb, and it's far more ergonomic than the pinky holding the bottom-left modifier key. ⌘-A should be nothing but an easy thumb contraction.

I use the usual Caps Lock position as my "Control" key, which is faster and more ergonomic than any of the traditional modifier positions, but the second place is easily the Spacebar-adjacent modifier key (I use it as my Super key, for window manager controls like workspace switching and application launcher). I have Alt bound to the bottom-left position where Control usually is. Alt doesn't get used nearly as much, and that's the third-best spot. The spot in between the two bottom-row modifiers is the least accessible by far (hard to hit accurately with the pinky, out of reach of the thumb). 101-key keyboards don't have it at all. I've recently started using it as push-to-talk, which works fine since it's not used for anything else and you don't have to chord it with anything.