The blade is inheriently unstable at 2" (ground effect) I got some great hover time last night at 2-3'. Blew a set of CF blades and some other head parts when it contacted an object (I guess I lost it or my reaction time was off).[:@] I purchased the plasti-sym blades this time as well as other needed parts. The plastic blades are cheaper than CF and might be a little more forgiving. Stock flat bottom blades are out of the question because the thing flies good with sym blades. I'll be happy when I get this learning process done. The simulator helps but the actual reaction of the heli differs as well as the simulator lacks depth in orientation.