I am in the market for a good (very good) SA 9mm. I know there are a lot of good ones on the market - last one I owned was a Shay Akai STI offering - great gun, but with the double stack mag it did get heavy after a lengthy range day. Any body have any recs? I don't need a custom gun at this point in my life, but I do want a durable and accurate shooter. Anything better than a Sig p210? Needs to be single action as well and something for which I can get a threaded barrel.