Well, im fed up with my Jt 6.0, when it works its a sweet gun, but thats a rare occurence. Anyways, im looking to upgrade to a GX-4, but I dont want to get rid of my Evil Pipe barrel which is spyder threaded. Lapco makes a spyder to cocker adapter, and I was wondering if there would be a preformance issue, or would it not affect it at all? thanks