MTC Viper Pro problems

I've found Sightron & Athlon to have great quality control. I've bought 2 of each of their scopes, and they both operated the same - all of the dials felt similar. With Hawke scopes I've found quite a bit of variability and poor quality control. I think they used to be very reliable, and are now living off a once great name brand. I won't buy another one because of problems that I've had with their scopes. If you can get a good one, they are fantastic. The problem that I've experienced is getting one without defects.