Joe Hall has been at this for some time. I like him personally and think he performs a great service. The guns he has for sale have been good specimens in my experience. However, guns come to Joe from a variety of sources so each would need to be examined. Dig could do this. I believe that John Foster and Graham McKinlay have given guns a vetting as well for customers Stateside. This has been more important to me in buying from the auction houses but at the price range of most of Joe's guns, I wouldn't hesitate to have an expert take a look. I have also found the Purdey and Atkin, Grant & Lang personnel to be very helpful. A friend has gotten similar information from Boss offices. Getting a gun to the US is now complicated enough that I heartily recommend having someone take a look in the UK.