yeah sorry to hear because it was looking really good =( hopefully next will be better but if you want to get the right size and get used to it, there is a test one on the halo wikipedia
that's what happened to my hayabusa helmet, i used regullar printer paper and when i put resin, my helmet was pretty much see threw and if i put rondo on it, it will just eat the paper away
well good luck on the chest =)