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					Originally Posted by Angelo Amato  interesting read, 
my maths too are bad    maybe i should stay away from formulas !
 
Angelo | 
	
 Which is agood idea, as there are too many variables!
I tried reasoning with it too and it is totally useless trying to calculate it, although I agree with most of EvilC's post ;-)
Just try out one combo and change according to your experience. Works much better for me.
I now have 993 rear brakes (30/34 cups) at the rear and GT2 rear brakes (330x28 with 28/30 cups) at the front with stock MC. 
While the cups are much  BIGGER at the rear, I still have quite a noticeble front bias as the front still locks up (too) easy and I have really the most front weight beetle of most here... 
How you explain that?
So, just try and adjust, try and adjust 
