Hello, I'm working on a simple recording booth for recording vocals and voice overs. I'm trying to keep as much sound out of the booth as possible, I plan on weather stripping the door and sealing everything to make it as airtight as possible. But my idea is for mounting the drywall, I've seen the metal isolation channels and the expensive clipping systems, but I came up with my own system. Basically I would use 2 2x4's to mount the drywall. On these I would bore 2 mounting holes and mount it like so: Framing > rubber washer > 2/4 > rubber washer > metal washer > screw. As this is confusing I drew a picture. wwwDOTomfggamingDOTus/soundisolation.jpg (I hate being a noob) Would this be more effective than the metal channel, or am I just wasteing my time? Also in the wall would it be better to use fiberglass, or somthing more dense like sandbags? Thanks in advance!