Well, I'll try this again. I just wrote a long write up on mine then apparently lost it before posting.

I just found this thread as I don't monitor 3D forums. I'm mostly interested in precision aerobatics. I have 5 flights on mine.

My power system is:
Actro 40-5 with Actronic 32-70 controller
APC-E 20x8 prop
10s2p 4000 mah Thunder Power ProLite pack
11 oz. 2600 mah Rx pack, (I need the nose weight).
RTF weight is 13 lbs.

The paper tube houses the controller and directs prop blast over it.

Norm