I just purchased a Spyder E99 Avant. I got it home and hooked the CO2 up and I found there is a leak. It is high in the gun. In the barrel or in the action. If the action is back the leak is not as bad. It’s still bad but nothing like when the action is forward. I took it apart and looked at all the O rings. They all seemed to be fine but I oiled them anyway. Put the gun back together and it still leaks. The gun has never fired a paint ball. I can take it back to the local shop Wed night but I was hopping it might be an easy fix. (Battery is all charged so that is not it.) Any suggestions?