I use the Leupold quick release QRW for the Weaver Slotted style mounts.
Always remove the scopes for detailed cleaning and have yet to have one be more than an inch off of zero when re-installed.
I've got a 3006 rifle, a Mossber 695 Bolt shotgun and my Omega set up with these mounts.
Also know several guys with T/C Encores and Knight Extremes and they are all using the Leupold QRW style mounts with various scopes not just Leupold.