That is my observation. I have Ergodox, Planck and X-Bows, all of them are non-staggered. I noticed that I had an urge to adjust either keyboard or my posture constantly. On the other hand I’m comfortable with a traditional staggered keyboard at any angle and position. Non-staggered is very comfortable as soon as you keep you fingers along the columns. But is you move a little bit - you have to adjust the keyboard.