I shoot a mathews legacy as well. still looking for the perfect grip but the bow shoots sweet either way.
I just put a Leosch medium wrist/full grip on my LX and I love it. It' s kind of the perfect balance between the Mathews Classic grip and the Competition grip offered by Mathews. And if you contact Jamie Leosch (on the Leosch website), he' ll recommend a grip style for you ,if you explain what you want and your likes/dislikes. He really knows grips !!