Q on brembo drilled rotors w/ HP pads

[Spector5]

So I read that its not recommend to use brembos drilled rotors with a set of high performance compound pad? Was wondering why they dont recommend it, and what problems would it cause if you did run a set up with those components?

 

[silvreclips]

The holes in the rotors increase stress concentration on the rotors and they tend to crank around the holes. I have ran several drilled rotors and they all had cracks around the holes. None of them failed or but maybe in a track environment they would have. I wouldnt buy them