Now we will impart to you the Dark Arts of padding.....
Rule 1) Put padding where people hit you. These places could/should include Legs, hips, sides, vanbraces, elbows and helm.
Rule 2) Put padding where you are required to by the rules (and common sense). Gorget, knees.
Rule 3) If it hurts when you get hit, maybe you need more padding.
Rule 4) Use open cell only where you need it for comfort. It absorbs sweat and gets a little nasty after a while.
Rule 5) GET INSPECTED BEFORE YOU GO TO THE EVENT. It sucks to be left out of the fun.
Rule 6) Glueing your helm padding one the same day as you are fighting is a bad idea. The fumes are not good for you and you’ll be unhappy.
Actually the process of padding armor is pretty straightforward. Just find the places you need padding, cut out foam to fit the part, and follow the directions on the can for “permenant bond”.