Re: quick-release mounts?
I have several ADMs.
I believe that QR mounts need to be one piece to stand the best chance of RTZ.
I had ARMS throw lever rings and they were well made with a clever QR mechanism, but some people hate ARMS and badmouth the rings. I got rid of them because of my preference for one piece mounts.
The ADM mounts are the best value out there. Good locking QR mechanism, solid materials and machining, and relatively inexpensive. I'm not a huge fan of the vertically split rings but once they are properly assembled, they do not move. They are less expensive to produce and can be converted by the end user just by buying different rings, but when I've meticulously re-assembled them with the same scope, the zero has shifted quite a bit, which will not happen with your typical horizontally split one piece mount.
Joe