Ok, I just sent in my old valve assembly about 3 weeks ago to a company online to upgrade to a Retro Valve assembly. Well my valve came in, and I installed it into my micromag, now as soon as i air it up all the air just runs straight down the barrel. The sear never even gets any pressure applied to it. I've tried all the power tube spacers and all had the same effect. Tank is full, what could the problem be....I really need some help, i've got a tourney Saturday, thanks guys