Jeff - I usesome kind of a big woodengrip on my Iron Mace. It came stockwith carbon/fiber sideplates, but I took them off b/c the riser gets cold, and I don't like the metal touching my hand.
So I just wrapped hockey tape around the riser and shot it like that for a little while, and it worked fine. Well, then I went up to my uncle's shop to crest my arrows, and he started ragging on me - said that I was making my pretty newbow look trailerparkghetto with the hockey tape grip. So, I stuckthe wooden grip over the hockey tape just to shut him up.
I guess when you think about it - "grips" are overrated as far as deer hunting goes. If you shoot bow long enough, you learn the right way to hold it, and it's not rocket science. I mean, if you're anchored consistently, your bubble is level, and you're basically holding the bow with just your thumb - it doesn't matter if you're using a grip made out of polished petrified dog poop. It's a machine, and shooting it is a mechanical process.
Maybe for a competitive archer, they're looking for something more consistent...but from a hunter's perspective: I don't think your bow grip will ever be the difference between getting a deer and eating the tag.
You can see it in this picture. It's not a huge grip, but it's not slim either. I've played with it on, with it off - and it makes no difference. To me, at least.