An interesting study might be how keyboard players, string players, and people who have never played an instrument at all before, end up approaching the Alpha's layouts. I already find that I use a different technique for Split 1 than I am doing for any of the other splits, mainly because the left hand has different roles in a world of splits. I am having to teach my left hand a whole new muscle memory, where my right hand is adapting faster to tasks. Odd that, because my left hand is well independent of my right hand on a piano or computer keyboard.
I've tried using one of the splits to have the left hand working a lower octave from the right hand on the piano in sampler 1. That seems to work for me, where, say a left hand 5th is simply laying a finger over two keys, and you can use other fingers to move 5ths. Needs practice, but seems to work effectively.
I think there should be something like a Hanon for Eigenharp, to develop muscle memory. Especially the left hand. But then I'm a keyboard player, not a guitar player.
Interesting discussion.
-Paul