No probelm. When i first tried one of these, i found they fly heaps differently to normal planes, and they are really good to teach you how to use the rudder. If you just give it alieron alone, then they go into this sorta knife edge skid, and dont turn good.
I have recently moved the battery and CG forward on mine, and i now find it flys heaps better, and hovering is still quite easy. With the battery really far back they hover nicely, but fly pretty bad...
Cant really do much about the slop if its just the EPP flexing, just dont fly really fast with it i guess.

Stefan