i got a 5 week WCAT leaking 3 bar a day gun came void orf air ,,tightened brass screw thought that did it ,it actually stopped till i used agin,, shot another tin and its still leaking retightened screw ,still leaking.3 bar last night ,,regulator ? anyone got any ideas/ methods of leak testing? i hate to mail to AOA even though i got a R A for a free ride there UTAH AIR GUNS REALLY STANDS BEHIND THERE STUFF