Here's the deal. Last time i went to the field, my Ego stopped shooting. I thought it was just because I had a crappy battery in it, but after having installed a fresh nice one, the problem isn't fixed. From what I can tell, the rammer isn't hitting the valve hard enough to open it. It does move back and forth, but there is very little pressure. If I slam the bolt forward with my hand, I can get it to open enough to shoot a ball (not tested, just sounds like it). Adjusting the LPR only seems to make it worse. Its not super dirty or anything, and my o-rings seem to be in pretty good shape. So, gurus of MCB, what am I missing?