If I was to be looking at a Katan, I'd be really hoping Ace Hobby was going to release one of the SD models that they took over. I was talking to them in Toledo and I vaguely recall something about that. It's 100cc big brother can't be beat by anything out there of the same type. Mid May if I recall correctly. I was told they had corrected the old fit problems SD had by finally shipping the right parts to the right planes.