I love the trap commander wad and Lyman .525 slug combo, problem being I also love federal Gold Medal hulls, but I could never get them to crimp properly they like to pooch, so my solution was to cut off the wad and gas seal get rid of the cushion legs and add 2 .125 nitro cards to bring up the column total weight is 544 grains, with the slug in the unaltered wad it is 538 grains, I use blue dot and herco as powders, I have had excellent results with the trap commander and .525 in Cheddie hulls, hope this holds true for the gold medals... Comments welcome HCAlso I put a plastic disc under slug to raise it a bit, and a overshot card..