Interesting to see the typing layout as your choice of keyboard. The newer version looks like it is evolving into the controls for a plane.
When using AC I sit slightly to the right of center of the keyboard. this gives me easy access to the entire keyboard with my left hand. I use the mouse with my right hand.
I've always likened it to playing the piano.
When you use a keyboard like the ones pictured is it awkard to use if you are not sitting centered on the keyboard?
Erika
Architect, Consultant
MacBook Pro Retina, 15-inch Yosemite 2.8 GHz Intel Core i7 16 GB 1600 MHz DDR3
Mac OSX 10.11.1
AC5-18
Onuma System
"Implementing Successful Building Information Modeling"