Len, I'm not sure about how sensitive my hands are . I should have said , I noticed the shock on the Muzzy for the roller cam bow, my Outback. To prove it was the rest, I took the Muzzy off and installed a trophy Taker and the shock went away. As I stated, it wasn't much but with the Outback, which has near zero shock, it was noticeable. When the bow is shot, the Muzzy is driven down fairly hard. If you want to prove this theory, just stick your thumb out when the bow is shot and it will become VERY clear, OUCH. I still feel the Muzzy is a good rest. The one for the cable guard, IMO, is a better design. There are three things I found to be a design error in the roller cam model.
1) The arm is two close to your thumb and will whack you if you let it wander.
2) When you draw the bow, the cable that pulls the arm doesn't pull straight down. It pulls at an angle which puts side torque on the arm. This may not be an issue but it doesn't look like a good thing.
3) The cable attachment on recoil contacts the other cable that goes thru the roller.
I feel I set this rest up properly. I followed the instructions in the tape and was able to get good tune with the first shot, except for a slight nock high adjustment. I will not hesitate to put the Muzzy back on if the buscuit acts unruley. I still have the stud for the Muzzy, and the cord served for the Trophy Taker on my bow . Don