Has anyone gone from a stock recoil setup to a Kimber recoil setup? To be more specific, I have an Iver Johnson Thrasher SS, and while it is fine now, I will eventually need to replace the recoil system. If you are familiar with the Phillipino痴 (Rock Island, ATI, Citadel, etc.) you値l know that the stock guide rod head is thin sheet metal, and that the reverse plug is plastic. Again you値l probably know that the Kimber setup is considered an upgraded replacement. My question is, what a bout that reverse plug? Will the Kimber setup drop right in? Is work to the reverse plug needed or is there a reverse plug that would replace the stock one, allowing the Kimber stuff to fit? Been a while since I last looked into this stuff and was hoping one of you may be familiar with this. Thanks in advance!