As I understand it you cannot run a DBM on a rifle in F/TR class...I have a Choate Tactical Stock with a CDI DBM and AICS mags...its in .308 and I want to shoot F/TR...is there an insert or follower I can plop into my AICS mags that would allow single shot only as per the rules? Anyone run up against this before? I've been toying with stuffing the 5 round AICS mag with expandable foam (insulation foam from Home Depot) and trimming the excess off to prevent iits use as a mag but still allow single shot loading...still looking to insight from the Savage populace here...