I have spoken with John on the phone and he is a very nice guy. He even talked me out of a part that I wanted but I did not need.
I just met Rick Allison last week for the first time and he too is super nice. Rick even took the time to take me through his shop and he spent allot of time just talking about parts, materials, and showed me evertything in his shop that he manufactures from scratch. I picked Rick because he is local to me but I am not sure you could go wrong with either one. Rick makes allot of parts himself and some of those parts go to John to sell too. It just makes sense to me to buy from the guy who makes the parts instead of a vendor, if you had the choice.