can you explain why my marker would do such "rocketing"?if you have had it appart, did you get the hoses on the banjo barbs (silver elbow things) in the correct order, pull the trigger does it cycle backwards?
could also be an oring on the rammer, even if they look ok change them anyway...its the one in the middle of the shaft thats important (cant remember the size atm..doh!)
if its doing what daftkrunk described and doing what we call 'rocketing' then degas and remove the inline, undo the training bolt in the frm and pull the lpr out of the gun adn lube the orings on the back part of the lpr and that should sort it.
if you dont get any joy, give planet a call and ask to speak to Robert, he will do a better job of diagnosing than me.