I fully understand what you guys are saying about torque and that being the main area of improvement TRG is supposed to provide. That's part of what puzzled me when I got email from Martin saying these were potential problems areas when using the TRG on older bows like mine that use CAT cams. Their explanation was there's a difference between the new Nitro cams and CAT cams that causes this incompatibility to exist; the tension from the cables is applied to the cams differently through the draw cycle and thus causes issues with older bows.
As I had been away from home on a business trip recently and didn't have my bow to look at and compare to the 2011 bows I could only take their word on it. When I returned I had pretty good memory of how the Nitro cams looked and were oriented in the limb tips, so when I checked out my cams I honestly couldn't come to a logical reason for their story holding true. Yes, there are obviously differences, especially to the side where the cables wind up around the axle but the cam wheel the string runs on looks to be exactly the same position and offset on both bows. The cables track onto the cams somewhat differently but not extremely so as memory serves me.
I don't know if anyone else with an "older" CAT cammed bow has tried using the TRG/SOS but I can't imagine I'm the only one who would like to hear from them and what they experienced. I'm still seriously considering buy the combo and trying it out.
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)