I’m wanting to try poly wads in my loads. Currently, I’m using a waxed milk carton wad, topped with newspaper. I’ve had good luck with this combo but I understand there’s a bit of base deformation with the cardboard that the poly wads don’t have. Probably not a big deal at 100 but might at longer ranges. I know they’re available at BACO already cut, but is there somewhere I can buy a sheet and punch out my own? Looking to start with 0.03” thickness to match my current wads