turn out lpr .5 of a turn...
generally the leak before you fire a shot is from not enough lube on the stem or sail oring... or a bad seal from any of these 3 orings not being in good condition...
the other side of the coin is it can also be the lpr is just a tad to low that it doesnt fully bring back the bolt upon airing it up meaning with the first full cycle it comes all the way back.... this can also lead to fsdo if it is the
try the lpr trick first
if that doesnt help return the lpr to where it was
relube stem orings
if that doesnt work relube sail oring
if none of this works replace either these 3 orings one after another... or just replace them all in 1 go
also have a quick look at the top hat orings and the inner can oring they can also be a culprit sometimes