I've got an stock A-5 with an earlier E-trigger (the one that eats batteries).  Lately I've been experiencing accidental discharges.  This is with the safety on and it has occurred with both Co2 and HPA, but it tends to happen more with Co2 (4 or 5 times over the course of 5 minutes vs once with HPA and a remote line).  The first time it happened the marker wasn't shooting above 200-220fps and  I noticed a very slight leak at the tombstone.  Upon cleaning I replaced the O rings on the front bolt and 1 O ring on the Valve/Rear Bolt(ran out of rings) I oiled the tombstone O ring and that fixed the leak.  Replacing those two other rings seemed to fix the fps problem( can get it to 300ish ).  Let's see, my cocking handle spring is bent at the end but that doesn't seem to be a problem and since purchase have always experienced fluctuations in pressure(30+/-fps with Co2 attached to the marker, 20+/- with HPA and a remote).  Your thoughts on the matter?