Very cool - nice track too. Where is that anyway?
I really like the low CG you've accomplished with the two lower profile packs. Have you weighed your setup yet? If so, what does it come in at? The only thing I might recommend from what I've seen is to counter sink the holes on the bottom of the chassis rather than using the button heads. You've probably already done this though.
By the way, are you the same GTXracer that was from Idaho? If so great to see you pull off this great build. Too bad we never got to dice it up at the Boise track