Mine (the one in the photos) has a Saito 91. I'm running 15% heli and an APC 14x6. It will pull out pretty well. Harrier with this plane is a little strange. If you can find the 'sweet spot' it will not wing rock. Otherwise it's rocking pretty bad. My favorite maneuver with this thing is the Parachute. It just stops dead in its tracks. Lots of fun! I'm already bringing mine in lower, got it down to about 15 feet today. Just gotta keep practicing.

Note - some people have stated that this thing will not snap roll. This is true if you jam the sticks on high rates. To get a good snap, use plenty of aileron, about 1/2 rudder, and almost zero elevator. If you use too much elevator it will do what looks like a very tight barrell roll. Also, this plane will pinwheel pretty well. Do a hammerhead, except hit full power and keep the rudder in there. You'll have to hit some down elevator when the nose starts coming up, but the maneuver looks great.