Could you explain the armor costs? Maybe I'm overthinking it. 10/25/60 slugs per point of armor. Does that mean a 2 point armor would cost 25 slugs or 35 slugs (10+25)? Is a 3 point armor piece 60 slugs total or 95 (10+25+60)? I'm adding this game to my little portable dm bag and can't wait to play!