Usually I don't get involved with "Which scope is better" discussion because so much depends upon the mission, personal tastes, and budget. But when I see responses such as posted by Chris, I can't help but ask: exactly what are the problems that the USO variables have? Please be specific.
Regarding the screw pitch, it wasn't a "line" of scopes; it was a particular turret, a new one developed by USO that permits a 45 MOA elevation change in one revolution in 1/2 MOA click values, i.e., ninety clicks per revolution. The first batch of scopes with this turret were sold before the problem was caught. It wasn't a big deal - and I know because I have two of the effected scopes: one a fixed 10X, one a variable.
Now that this particular problem has been explained, I'd really like to hear about the other problems Chris has alluded to.