jag-mag, when I read your post I remembered a thread over on Eders from a few weeks ago about Loesch grips and how impressed everyone that used them were with them. I did a search for you and here is the website.
www.bowgrips.com. I checked the grip catalog and there were alot of Hoyt grips. I looked at the Mathews grips a few weeks ago ( I shoot a Q2) and there were several styles that I could put on it if I wanted to change. I am sure you could find a smaller or narrower grip to your liking. I know that everyone on the thread was raving about these grips. Hope that helps you.