Brushless here I come!
The stock motor died today, was having a quick hover in the living room when all off a sudden the motor started making a loud noise that sounded like metal grinding on metal, the heli lost power and the tail went a bit mad for a few seconds, fortunately I landed the heli okay 
So I’m now in the process of stripping the motor and old ESC out to make way for the 3900 motor and EK1-0350 ESC, while I’m there I am going to fit the Extreme frame stiffener I bought a few days ago.
See you on the other side