Hello!
I've learned touch typing about a year ago with a Dvorak layout.
Inspired by the Space Cadet Keyboard I've also mapped "Caps Lock"
to "Backspace".
Now I'm considering Colemak.  It seems to address some issues I
have with Dvorak.  
Here a question and some comments:
- How much the additional backspace binding accounts for the
  lower average finger distance in the Colemak layout?  How does
  Colemak compare (regarding average finger distance) to a Dvorak
  layout *with* the additional backspace binding?
- It would be nice to have a comparison table like the one you
  did for the Asetion layout.
- It would be interesting to learn how you developed the Asetion
  and Colemak layouts!
Thanks for your time and for developing these layouts!
Emilio