Thanks for the replies.

I'm considering every piece of the truck and its impact to weight and performance. I've already lightened it a bit.

In fact, w/ the stock motors and promatch 3300's (1.17) I had to gear up my truck considerably to keep it from wheelie-ing during 2nd gear starts. Its an extremely fast truck w/ the few changes I've made to it, and the runtime from these batteries is awesome...both statements though are unmeasured and based on experiences pre and post upgrades. btw, the stock motors were warmer than "normal", but not by much.

Anywho, the CVD's will be replaced when or if they're twisted. If the mass (weight) may be reduced enough such that I can use a brushless system and stock shafts, that'd be peachy...we'll see. W/ regards to weight, CVD's, and brushless motors I should be able to use a rev happy motor rather than a torque monster, maybe the stock CVD's will suffice. Maybe not.

With regards to top speed, its the acceleration and keeping things firmly planted during acceleration which seem to be the issue. I need to work on my lead finger. ;-)

Seems most people "bash" around their house, my preference is to "bash" at the track. And it's definately bashing, w/ the speed and frequency of bumps and jumps racing is no less harsh on my truck. Out of a dozen trucks in the 30 minute main two of them finished it. So durability is a very important piece, even for the race truck. I've heard good things about the carbon fiber chassis (nothing disparaging) but I've not read many (more than a few) reviews from racers or bashers on the durability. So confirmation that a G2-CF chassis is a suitable chassis for the conditions to which my truck are exposed will help me make my decision.

thx!