Sub 3 is a dilemma I have been chasing for a while. We also race on a 42' Freedom, and I have only been able to manage 3.023. Its not easy with graphite, but I still think it is doable. Send a car into MA using the actual parts from within the box with a standard WB (nothing purchased other than weights and no lightening of the wheels, but the wheels were relocated) and I think I'm close close but no cigar (the car has a theme so it is not flat and a scout car really would not have fenders etc.). The wheels a sloppy on the axles, no oil, no lathe, and no block (but a block and prss are in my near future) make this a really tough challenge.
This "goal" has cause me to buy a test track.