i just ordered a slash 4x4 the other day so i could go to the weekly races in town. it;s a indoor track that is carpeted. Today when i talk to the guy at our local r.c. shop he said the slash 4x4 would be no good for races indoors on carpet. he said "it won't be fast enough around the corners", wont turn as sharp as the 4x2. is he full of s--t or will the 4x2 out perform the 4x4 on carpet.