I have a spyder rs i got off ebay. Used it once next time it wouldnt fire. I went and got a new rechargable battery still wouldnt fire. Took it to a local shop they told me board was bad, i bought a new tadao board and m7 chip. Installed and still wouldnt fire. Took it back to the shop and they said bad trigger switch. So now i order a new trigger switch and solenoid and figure well at least all internals will be new. So i put the new trigger switch and solenoid in and it fires. So i go down to the local field to play, get through 3 games and no more fire. It will not release the bolt with any pressure on it. If i pull the bolt back and take pressure off the sear it will release. So the guy said it has to be a bad board. I order another tadao board and put it in and still no fire. It just wont fire with any pressure On the sear. so after messing around with it i backed off the velocity screw and it started firing. So i pulled out the chrono and any thing over 260fps it will stop firing. I adjusted the palmers regulator up to 500 psi to get up to 300 fps but anything higher on the velocity adjustment and it won't fire. I treied different springs with same result. Anything over 260 with velocity adjustment and it wont fire. Any ideas?