Brake efficiency is all about heat Tino. There must be a fine balance- too cold, pad material may not work, too hot... nothing will work and wear and tear will go through the roof!

As Stace suggests- friction effiency is what more pots/ larger brakes attempt to address. Distributing the job accross several points, over a wider distance in theory attempts to keep heat under control etc. Not all "big brake" packages do this efficiently though... sometimes a smaller quality setup can out-do many of the big bling crap. (Eg- a larger inneficient item can take much longer to shed stored heat etc).

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"...even my Grandma can drive fast in a straight line"