I would not put any oil on the solenoid. I would try some oil on the trigger group after a good cleaning. Have you painted your marker? I have seen with some paints that you build up to much thicknes where the grip mounts to the receivers. It pinches the trigger group to tight. Make sure the solenoid is returning and not sticking in the firing position.

I have not painted my marker... but I think I have figured it all out... I just cleaned it all up really good and put some oil on the trigger group and it seems to be functioning fine.

I'll let you guys know more after I get to play around with it this weekend or later in the week.

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Tippmann A5, LPK!, and Egrip (APE 2.0)
PPS 12" Brass .690 - JCS RedHot modded to Gold Power Tube & Hex Bolt - PPS Stab w/ gauge & Hex-Grip - Rap4 Full Cyclone Upgrade Kit w/ Wargear Squishies - HUGE 116/3k Nitro-Duck HPA tank - Spec Ops MP5 Shroud - Rap4 Stock w/ RVA - Tacamo AK Rail - Barska 50mm Red Dot - JCS Duel Trigger