Hmmm, I was just the opposite. I had a good experience with the Trapdoor and some frustrations with the TT. Now I am using a converted GKF Golden Premier and am entirely happy.

I had one of the previous versions of the Trapdoor and had zero problems with it. However, the gentleman I sent the rest to try out had it "go out" on him after some shooting. There must be a shot limit for the durability of these rests.