I grabbed a TON of the puzzle foam from Harbor Freight because of the 30% off Black Friday deal (really happy about this.) I know a lot of people like to use it to make their shields, but I am curious about how many layers to use, and whether to add camp pad to the rim.
I'm making 24 inch round strap (A bit small for a 1-year fighter, I know, but I want to get better at my shield-work) Would four layers of HF puzzle foam be fine? Also, I know this stuff is a lot tougher than blue camp pad. Should I add a layer of blue to the outside? I feel like its not necessary because of the all 4# plastidip shields that pass all the time, but I don't want to make a shield that is too "angry" when I shield check or bash people.