I ran mine yesterday with a 10x2 with a 4cell 3800 pack in a parking lot. Its now dustier than it has probably ever been. I was so impressed with the dust that i took pictures, ill post them when i get off work today.
As dirty as the pavement was, I still had fairly good traction, unless i hit the brakes. Purple front tires, god only knows what rear tires, and one of them has about 1/4 inch cut off(this was an oval car i got used). I was running a Monte Carlo oval body as well.
I blew out one of the side shocks and need to get a rebuild kit so I can replace the little star piece. And I was wayyy over geared.
But it was the most fun ive had running a car in parking lot in a long time.