The FO rod cracks under recoil on the set I had by the end of an 800 round pistol course, the front was totally gone, and one of the rear rods was in two pieces. The instructor said that he had had it happen to some other students in the past as well? As always, YMMV, but it's what happened to me.
This. I've personally seen it happen in no less than 3 different TFO equipt pistols.