RE: TAlley one piece mounts...opinions?
Back40 ..lapping is not as hard as it may seem go to sinclair international and look at their base lapping tools. I have not lapped my Talley Rings I didn't need to and if I did I am not sure about lapping those models made of aluminum. I am sure with their customer service they would work something out for you if they didn't align...I would suggest giving them a call if interested.
VAPO yep that is a question i have also if the Scope fails but to alleviate that one would have to go to a quality detachable system ...