A rifle is like a woman. The longer you work with them, the more comfortable you become with them. You learn their little nuances, and either adjust to them and have a winner, or get rid of them and get a new one. No rifle or woman is perfect, so you have to have reasonable expectations for both. Just the ramblings of lifelong shooter and 43 years of being with the same woman.
My Optima lasted 40 shots on a Titan NP. A very smooth shooting rifle. All of a sudden it shot 2 foot high and 6 inches right and wouldn't adjust. I have had better luck with cheap Centerpoint 4x32 s than with that particular scope. Lots of stories on here about the unreliability of this particular scope.
My Titan was well broken in and settled in when I put this scope on it. I got it with my Edge I bought, and thought that the Titan didn't have as much recoil as the Edge. I guess I was wrong. should have used it on my pump guns as there is no recoil on them. Oh well " luck of the draw" as with all things airguns .