I see you have many cars so it's difficult invest in every one especially with crisis, it's similar situation in Croatia...

As far as the braking power ratio, I have just calculated according your infos from brake tester which you are made.
but I think i have seen somewere OEM braking power ratio between axles for Q4 in procent.

is there some special reason why you want to put larger rotors in front? I think maybe you just need an brake regulator to reduce little bit rear axle braking power....

I wonder how is that problem solved on coupe 20vT compared to coupe 16vT for example, both of this two cars have same rear brakes, same master cylinder, but 20vT have larger rotors, larger pads, more calipers in front... so it must be disturbed ratio. is it only adjusted regulator or something else?

my english is also with help from google translater so I hope you understand me