Lightship's website says the AE1 Cosmos Edition has a dry weight of 7450 lbs, and a GVWR of 8300 lbs. Unless I'm looking at the wrong version of a Lightship and there's a lighter variation one can buy, you're mistake about the Gravity being able to handle it. Near as I can tell, the Cosmos version is the only one currently offered. They do say they'll be coming out with Atmos, Panos, and Terros versions of the AE1 in the future. But even the lightest one of those upcoming versions (AE1 Terros) still has a GVWR of 7500 lbs.