I picked up an MBG Ascent Verdict two weeks ago. After opening the package, I immediately noticed that the dial knob was really stiff to turn and had uneven pressure between the ends of the bar and the middle (middle being very stiff). And yes, the unlock knob was fully out to allow for turning..
I emailed MBG and they requested that I send it to them to repair; so I did. I just got it back yesterday. While it's better, it is still not as smooth as I'd think a $200 sight should be. The return email I received said that it was as loose / smooth as they could make it without having other issues. Honestly, it's still is not turning easily and the varying pressure has me worried about quality.
So I'm returning it to Sportco this week. I am pretty bummed and I'll think I'll look at HHA next. I was eyeballing a Fast Eddie, but the exposed gears had me worried about stuff getting in there and fouling it up.
For what it is worth MBG's customer service was great. Very quick email responses and very friendly. Just disappointing that their product wasn't what I was hoping for.