So did the 70mm fit fairly easy?

If so I think I'll eventually pop the lander alloy 68mm setup in there... there is a 4s and a 3s setup, the 4s has these specs:

Specs:
* Outside Diameter: 73mm
* Rotor Diameter: 68mm 5 Blade (fitted)
* Marterial: ABS & Special Aluminium
* Weight: 210g (Unit With Motor)
* Brushless Motor: 2838 (fitted)
* Motor Kv: 3,900 (revs per volt)
* MAX RPM: 48,000 - 50,000 rpm
* Max Power: 680 - 700W
* Static Thrust: 1050 - 1200g
* Current: 43 - 45A
* Required ESC: 50A (must accept 4S)
* Required Battery: 2500 - 4000 (use at least 20C. 25C Best)


the performance from that would be... insane... probably total overkill but it'd be fun to find out once i have mastered a more sedate power system. Apparantly they are excellent units, and sound amazing too.