Looks good nitro. I wonder why you have the cam rotated 90* though? I think the cam mounted upright, and just a few degrees down would help. The less light differential these cams have to deal with, the better.
The flourescent lights would appear a little less overexposed I'm thinking, but that may just be the nature of the beast. Other than that the mount seems solid enough and the difference in the GoPro may or may not be worth the extra $ to most people. And I think the GoPro would be less 1/10 scale-friendly as far as mounting options. The race OBV was great, wanna see more of that