Might as well post my setup too as I only posted into the race thread. People were saying that my setup was a bit too oversteery, but it was pretty quick.
I would say, the fastest is the best... I'm sure some could build a 4 gear setup as fastest as a 5 one. So whatever suits you the best. But personnaly, I would go for a 5 gears to have more options in the corners.
