Poor quality/design - SightMark Photon RT 6-12x50 Digital Night Vision Rifle Scope

The first one I got was 20" high at 25 yards with elevation adjustment maxed out. Returned to manufacturer and they replaced it ( customer service was great). The replacement was still off on elevation but was close enough to make it work with adjustable rings. Picture quality, range, etc were all better than expected for the price.... initially. A little over a year out and it just won't ever get perfectly focused. It would still be useable, if it would hold zero. I The issue is with the front of the scope where it attaches to the traditional tube. It visually flexes with the lightest pressure. All the weight is there and combined with the recoil from a rifle it wants to drop down, angling the objective down and moving your impact point up. I used it in 10 or so hogs, so it did what I wanted it it to do, but I'm done zeroing constantly and and adjusting the rings to get it close to zero. I wouldn't even sell it to anyone at this point and see no reason to send it to the manufacturer again, as I feel pretty certain it is a design flaw that will just keep popping up. I had it mounted on a .308, so maybe it would be better with a lighter recoiling round like 5.56