coombsie66...I'm sure you've already thought of this or read it, but personally, I think that it probably has a great deal to do with cooling...you see, the holes have much greater total edge area than do the slots on a slotted rotor...even though it weakens the disk a fair amount, it is also quite effective at reducing the amount of heat retained, and as a result, helps to make heavy braking a repeatable, relatively fade-free experience.
You might also note that Aston Martin, Lamborghini, Maserati, Bugatti, Ford, Jaguar, Lotus, Mclaren, Mercedes, MG, Noble, Pagani...etc...ad nauseum...also use cross drilled brakes on their high-performance machines...so they must have a fairly significant benefit from a performance standpoint.
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me-- "Sometimes you feel like a nut, sometimes you don't. Sometimes I feel like the moon is made of cheese"
my Hindibonics-speaking Indian roommate--"Dawgs, do you have any idea how much bacteria that would take?"
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