I have an MVA scope that I bought back in 07 or 08 and at bthe last match the windage knob didn't move anything just came out without moving anything. I sent the scope back to MVA to get it fixed. They called to let me know it was on the way back. The gentleman I talked to said that they had made some improvements to the system and they made the upgrade at no charge and paid the return shipping.
You often hear complaints when a company screws up but I thought that I would give a shout out for good service since we often take that for granted. The scope is old and been around the block so to speak and I would have understood a charge for an upgrade after this period of time.
Bob