I'm pretty sure there is an old thread on this but I can't find it for the life of me. I want to mount two small tanks on the side panels where the back seat would normally sit. I'm planning on running a compressor line to one of them, an open line between them to equallize the pressure, and safety pop-off's on both of them. Is this safely doable? If I'm being a moron just say so. Has anyone ever had a safety pop-off not open? I would figure that by running two of them you're protecting yourself, but **** happens...here's where I want to mount them: BTW...no, my camera isn't messed, that tool box is actually cut in half.