I ran mine at Rifles Only too, while I was there, the lock started to bind a bit, but I was able to loosen the turret cap, wiggle it and re-tighten it bringing everything back to normal
We played with it a lot, the guys from the online review posted on the Hide were there, so we messed with it a bunch, and constantly messing with it, we were able to recreate the issue, but as I said, I loosened it up, let it settle and no issues.
I really enjoyed using it, the first day I didn't wear my prescription glasses, (big mistake) but other than one target in the fog early the first day, i was really happy with the sight picture. The repeatability was first class, even messing with it in the middle of a match.
I had a dozen people playing with it, no drama
Now, just find a bipod that stays put ?