After a good day of shooting the FX WC MK3 with a friend who had never shot PCP before, woke up the next day and the friend informs me that he thinks my gun is out of air. Sure enough he had shot it down to 0. When I try to fill I can hear air leaking from or around the plenum and or the reg. Anyone have any idea on what damage has been done or troubleshooting steps I should take? Is there a blown oring, or worse? I am familiar with Impact MK2 teardown and repair, just bought the WC and havent had to teardown except to upgrade to SS hardware (screws/bolts, etc). Thanks in advance.