I recently purchased a Mathews LX and have been shooting it for approximately three weeks. I' m getting excessive grip vibration. Anyone else experiencing this problem? Any suggestions why? Solutions? I also shoot a Q2 and it seems to be a lot smoother (with no hand vibration). Assistance would be greatly appreciated.

I am not experiencing any with mine (extremely dead feel.....even with 350 grn arrows). Check your grip to see if it is loose. My MQ-1 began doing that a few years ago and I finally noticed that the grip had become loose. I popped it off and reapplied it with some 2 sided carpet tape and it was like getting a new bow.
Good Luck !!

my lx grip was makeing a poping noise the dealers put them on after they get them and some times they skimp on adhesive heat grip before you try and pop it off and use silicone to glue it back on

Mine doesn' t make a sound. I think the others are right, your grip is loose.