That's a bad streak of bad luck
Have to say. I have been lucky so far. A couple Parker's and a Winchester off GB and no surprises. May well be getting another gun there soon, but I already have my questions answered and the inspection period defined in an email
One thing I always ask and seems to be hard to get is the drops, comb and heel. And I have yet to get one where the seller can tell me the minimum wall thickness. That is why I like an email detailing the inspection. The one I am looking at, the seller said to take it out and shoot a round (but don't take it apart
). I like when the seller is that confident
All that said. I would always prefer to deal face to face or at least with some one I knew