Things I liked: Elevation adjustable, well made for price. Clever design: once you spend lots of time figuring it out. Can be mounted forward or reverse, with or without stop pin and the stop pin is rotatable with round and flat sides.
Things I would have changed: Does not clamp tight enough and creeps, depending on gun recoil and scope weight. Stop pin can't be used with HW90 if you need lots of elevation. Screws crush the mount slightly. There are several ways to mount but no comprehensive instructions.
What others should know: Because of this adapter I was hoping I could swap scopes on my guns easily using leupold qrw rings. But this adapter simply doesn't grip tight enough for some guns. You can have either lots of barrel droop or high recoil but not both. In order to use the stop pin the adapter must be facing forward (or backward depending on what you call it), but then you can only compensate for barrel RISE. I couldn't get this to work with the HW90 for this reason. The Hawke tech rep was responsive but could never offer a solution to my problem. Even on the low recoil HW97 creeping has occurred.