I have a micromag branded Retro valve that I installed in a micro and on 850 psi it is reacting so bad its unshootable, it will chuff if I short stroke the trigger or go pffffft. I install a new on\off pin I bought from AGD(the longest they list now is .745) and it made no difference. I put the valve in a different micro and it still did the same thing so its the valve and not the body. I know its got to be something simple but i'm working 84 hours a week and am not at my best for tech work.
thanks in advance.