At a Corvette Rally over the weekend I listened to a 1 hour seminar on the new E Force Supercharger from Edelbrock. Apparently the first ones just went on LS 7's last November so there may not be much feedback. Anyone have one installed? If so, what's the experience? Good? Bad? I also drove the standard C6 with one installed on an LS3. Edelbrock has both a 554 HP version and a 599 HP version. The installing dealer had a 554 which I drove. Unremarkable-and that's good. Couldn't tell there was a Supercharger until the pedal went down. I couldn't hear any whine, no surging, no delay. I'm seriously thinking of one for my 07 Z. The Z06 version puts out 657 HP and 582 ft/lbs of torque. It was specially designed for the Z06 and has 12" long runner for maximum low end torque. It is claimed to seamlessly integrate with the dry sump system. It fits like the ZR1 so you don't need a new hood. The core of the system is the Eaton Gen VI 2300TVS. It's a 4 lobe design with 160 degrees of twist for max flow, minimum temperature rise and quiet operation for excellent driveability. There is an integrated bypass valve that helps eliminate parasitic loss under light throttle for improved mileage. You don't need a jack-shaft. There is a self contained oil system with 100,000 mile service interval (no drilling or plumbing required). 50 state legal emissions. Any testimonials?