Yeah, the "15 minute rule" cost me a lot of money when I was bidding on that near mint Ross MkIII I bought. Interested bidders have a week to decide what they're willing to pay for a rifle, the 15 minute rule allows for the current owner of a rifle to get a shill buyer bidding if he feels he's leaving some dollars on the table. I'm not saying that's what happened to me but after all but one other bidder dropped out he would enter another bid right at 14 minutes. I had to raise my max bid a few times which added another grand to the final selling price. I was about to drop out when he quit bidding.