Am I just unlucky, Gene? Several others have reported the same, I have photos. The cross section of that soft aluminum extrusion on the Whisper riser is maybe 80 thousandths thick.
I did all the things with the tightening, one piece Accushot, the thread locker, etc. and my mount pins plowed through that riser quickly. My general opinion of Gamos is pretty negative, but you know a lot more than I do, so I bow to your experience.
I still hold a pretty low opinion of what I saw, and the glaringly obvious photos I've seen here lately of Gamo internals. And as you say, the scope is garbage. If they use that "ploy", I lose trust. I do know that others (like Randall) have Whispers that shoot fine. I believe most of those have had to do various tunings, trigger and other part replacement to get good results. If I had your skills, maybe I would be more forgiving.