502 Wheelbase

[DaveG28]

This is probably relevant to all cars, but as far as I can see there's two opposing effects of shortening wheelbase and I was wondering which one tends to win out (on the 502 or generally)

1. Shorter wheelbase should make a car more nimble?

2. If you shorten it by moving the rear wheels forward, you put more weight rearwards and therefore add rear grip?

Is the effect of 2 differen depending on whether you change the wheelbase using the inner hingepin spacers orthe outer?

Basically, in some conditions I am after a nimbler car with more grip relatively front to rear, I was wondering if shorter wheelbase could do the trick?