Sloooww Finger
Agreed Cowface... I doubt that my digits have ever seen 10 bps, but the effort of pulling my microswitch trigger versus the pull on my mechanical markers definitely makes a difference in my shot to shot consistency. My electro marker barely moves whereas my F4 didn't need an agitated hopper.
With electros just barely any more than mechanical markers (as in the case of the Spyder line) I can't see any reason to not get one. (okay, mechanicals are cheaper because you don't throw as much paint!)