Originally Posted by Eirik

I tested with both D-D blocks up front and B-A and ended up running the later as it gave me more steering! (used 6mm hexes)
In the rear I used the stock D-XB.....

The long arms runs too tight on carpet (stops in the corners) The short arms makes the car allot freer and it steers better, even when it slides

I have even been running the short arms outdoors lately, FASTER!!