Donny, I have to admit that I don't know much about the one-finger-chord method of arranger playing (I have honestly never tried it) but I have to believe that it is just there as an aid to a total non-playing beginner but never intended as a way to trigger sophisticated style loops which depend upon chord recognition. Also, how good could a guys right hand be if he can only manage a one finger chord with his left hand (unless he's Bob Dole). You may be right about knowing 'pro's' like that but I have to admit, I'm skeptical. I don't think that because that feature is there on an arranger, is any excuse for a 'pro' not to play it at the highest level it's capable of. JMO, of course.

chas