brushless and A123 questions

[highflier]

Hey all,
I tried out my E-maxx today with new Batteries, I was really hoping for a big boost from my previous packs. (6c 3300's) for 14.4 Volts

I was disappointed in the performance gain. Seemed kinda minimal improvement. My setup is as follows

wanderer 9XL
BK 12020 controller
Big Joe Tires
Forget the exact tooth on the pinion, I think it is 15.
A123 6s1p. (20 Volts)
Everything else is stock.


Now for the questions.
1) Do I need to go to a 6s2p pack??
2) What chassis would fit these packs and work good for bashing? (Packs are 3s side by side. I put one pack on each side of the stock chassis even though it did not fit...... (Had to rig it temporarly to test)
3) I am thinking about smaller tires.. Maybe the proline mulchers 40 series and some of the axial bead less rims. Would tha be a good set up?
4) What else is really needed for Bashing... Steering upgrade?

Highflier