Well, the wingloading of WH Extra 260 / Edge 540 at 22 lbs would be 29 Oz/Sq in. On a 19 lb Edge would be 30 Oz/Sq in. So all in all, it'll fly very similarly. Compared to your H9 260, you'll see that this feels 1 class bigger than your standard 50cc variant. I've had this side by side next to the Aviation 50cc Yak, and this thing feels bigger, and presents itself as being bigger. So if 80cc works well on hauling 23 lbs, then imagine what kind of power/weight ratio you have on a 19 lbs aircraft! .