Here are a couple of very informative threads on tuning the CAT/CAT-2 cams that also work for the newer Nitro cams. They're on the Archery Talk website and you can check out the threads w/o being a member but you won't be able to see any embedded photos if you aren't. While I like the general demeanor of folks here (besides being Martin centric topic-wise) there are some good tech articles on AT. Membership is free and they don't send emails to you unless you set that up in your profile. I recommend signing up and visiting the site if for no other reason than these two threads. I know of several folks who've benefited from them.
2008 Martin Firecat Pro-X (29" DL, 66# DW), home-made TRG, new VEMs, DS Advantage/HHA Pro-5519 front sight, No-Peep Sight Eliminator, Limb-Driver arrow rest, B-Stinger stabilizer/dampener, custom upper STS, G5 Head-Loc quiver on custom mounting bracket. Gold Tip Velocity XT300 arrows with Bi-Delta 2.5" Sharkstooth vanes and Grizzly single-bevel broadheads, 498 grains at 262 fps (22% FOC)