Okay, the application is a bit specific and limits me considerably. I have three rifles of different action types and configurations that are set up with scout-style scopes (Steyr Scout, Marlin SBL and Mini14). I also have a spare scout scope which I want to use as a back-up on all three guns, mounting it into a one-piece or two-piece mount that I can switch back and forth as required. No AR's involved here, these are hunting guns for which I want the lowest practical scope-mounting height. Due to the eye relief of the scope as well as the different lengths and positions of rails on the guns, I need something with about a 2-inch offset. Ideally, one ring would be offset while the other would be more or less flush with the end of the mount, so that the scope eyepiece would hang back behind the mount rather than sitting above it.
The easy solution would be three separate back-ups in three separate mounts or ringsets, one for each gun. But I'm cheap, and I hope to never actually need this back-up anyways, so I want to use just one quality scope and one quality mount to serve all three guns. Experimenting with them proves that there is a location on each that would work if I can find the type of mounting solution that I need.