Originally Posted by Thaard
I quick update: I've decided to start learning trad grip, because it feels better and is more dynamic. My teacher noted that my left hand comping sounded a bit "sterile" and "clinical" when i was playing/comping with american/french grip(especially when I was playing from notation). I will probably only use the trad when playing jazz and jazzy-type stuff and use french when I need something more loud/explosive.
I am the last person to tell anyone what grip to use, but I think this is a worthwhile endeavor. Jazz comping really presents a unique challenge to the left hand that I find trad grip is perfectly suited for. YMMV. Good luck and keep us posted.