You know, in the back of my mind I feel as if the manufacturers are just trying to squeese every last buck out of you!
You said it.
TR is introducing this rest for 2005.[&:]
Now if the rest drops out of the way what difference could it possibly make how the arm is shaped. It's not there to make a difference any way. It's already droped away in the first 6 inches or so of arrow travel.
A finger released arrow flexes around the riser and needs the side pressure to keep it going straight.
IMHO its just another product from TR aimed at making money rather than offering something constructive and effective to the archer.