It's pretty cool, I guess.  I would not consider it since there is the real possibility that the short cuts can change with each new version of SONAR.  I believe this to be true between X2 and X3, and certainly between X1 and X3.  Having the ability to change the labels is the better option for sure.
 
Kind regards,
 
Living Room Rocker
 
P.S.  I am adverse to the color pink, that's why I don't use PT.  Ehw gross!