Found what seem to be some killer deals on the CDNNsports website. Mainly interested in the price on new USPs (less than most people/shops are selling their used) and they had some used SIGs on there. Wondering if CDNN is a good source to buy from, and how they pull off these prices-are there any hidden costs that come up? Also the used SIG 226 says very good to excellent and night sights are only $10 additional. For $20 they will hand select. Would any one recommend purchasing a used one from CDNN?