Here's an interior pic .... a bit messy
http://s183.photobucket.com/albums/x...t=layout-1.jpg
The batts are actually a bit high .... tried to squzee them around the motor, I was trying to get close to an acceptable CG.
Suggestions welcome
Oh ... I've also got some AquaCraft Nitro Hammer props ... they look almost exactly like the Octura x432's ... could the reduced mass affect the rolling?