Barry, dont even give it a second thought. A larger gas model is a joy to fly,my first was just a few weeks ago, (Giles) and it was not any more challenging than a glow to maiden. In fact,I've had more trouble with some glows on the maiden. As far as 3-D goes,I'm out of my game for now with the Giles,at least the hovering part,harriers,walls & a few other things are working though.