Shortman,
The Edge you saw with the close call is now my Edge, but when my friend Meyrick had it. He's a great pilot. If I remember correctly, that was probably just a downdraft, because it harriers fine now, no rock as long as you don't fool around with the ailerons. Thats why the Edge gets into a rock, because if a wing drops, and you correct mostly with aileron, it has a lot of roll inertia in a harrier, so it rocks very easily. It will harrier.
As for tank size, I have a 24oz. too, and I only dream of 15 minutes.

I usually get 8-9min. tops of 3D before it flames out. The Moki guzzles! Fuel costs cet the wallet skinny.
3D-kid330