Iíve also experienced pretty solid RTZ with several of the popular QD mounts, including Larue, ADM, and Bobro. Of course, that is during normal non-repetitive use like most of us would do in real life. Donít know if it would do it 200x in a row, but who would ever really need that?
There is a very interesting topic I read about concerning the negative effects of vertically split rings on scope tubes and erectors, which would include Larue and ADM mounts. I am convinced by the evidence that itís not a good idea to use those type rings despite the nice RTZ QD features they have. Bobro is still a good choice... other than that I think a fella could do just as well with a Badger or NF unimount and a Wheeler Fat Wrench.