I also don't feel like I have the time in games to race my pinky back and forth between tab, ~, esc, and ctrl. It also doesn't feel comfortable to play with my pinky bent all the time. I know that you do the same with your pinky, but mine is no where near as flexible, and I have a hard time reaching Shift and Ctrl with it. Being able to hovering over Ctrl,Shift, and Space simultaneously has been revolutionary because it allows me to press any one of those keys with the fastest response time. I don't have trouble missing it or pressing the wrong key due to its size, and I can comfortably hit it from any position that the rest of my fingers might be in at any given moment.
By palming, I mean using the top part of my hand just a bit below where my pinky connects to press the spacebar.
