All I have to say is:
EEK!
This thing is CRAZY fast. 1/2 throttle and it was yanking the front wheels up like no tomorrow or just lighting all 4 up when there wasn't enough traction for wheelies.
I never really got it up to anything past 1/2 throttle, but from what I can tell, its got more oomph than my 18T, which is something I never thought possible. No matter what speed you are at, any increase in throttle results in an instant lurch forward as you hear the whine of the motor grow.
Since I've never run the truck with the stock chassis, I can't comment much on how they compare. However, one could assume that the truck is generally more stable due to the increase in wheel base. Right now it looks very much like a short, 4wd Jato or RC10GT.
Once I get everything smoothed out and get my body painted, I'll do a final write up - but I just couldn't contain myself...its just so awesome. It handles extremely well, and thats without any suspension tweaking. Once the suspension is dialed in, I wouldn't be surprised if you could keep up to some touring cars. It feels so light and nimble yet also very stable so long as you don't give it too much throttle. Its the first vehicle I've ever owned that has a center diff, so I'm still getting use to how it drives in certain aspects. I've noticed that high throttle input through a turn seems to result in the rear end getting kicked out quite wildly.
Well, thats it for now, I'm gonna go back to seeing what I can tweak on it.