Any idea where your velocity is? The gun reg brings the pressure down, but I'm wondering if there might be some compensation between the different air systems. A shop will probably have to test output for you. Our standard tanks are usually around 700. Also, make sure the valve is all the way open. It potentially could be an obstruction in the air path from frequent removal and insertion of the remote adaptor. The rear block comes apart pretty easy if you're comfortable doing it...otherwise, I would suggest getting ahold of Chris at email@example.com
and getting it sent in.