Posted for Tony Ketelaars <tony.ketelaars@gmail.com>:

 I just purchased a 4P
 It only has 120 hours on it, so still in the debugging stage
 I took it up 10000 feet and when I pressured it the ailerons got really
 heave and stiff that even the auto pilot would not control it
 While descending the Controlls became gradually lighter and normal
 Anybody had the same experience?
 
 Tony Ketelaars