archangel>  I can agree with that.  However, if you're going to have a rotor drilled.. all most places do is chamfer >sp< them.. that way the hole doesnt crack as easily.  Plus, most places are using really small holes.. not too beneficial if you ask me.. but its all good.

I drive harder than most people and I only use cryo-treated Brembo rotors that I have slotted.  They are pretty #### durable.  I have other friends though who've had Brembo's drilled.. and they dont drive nearly as hard as I do.  I've still seen the cracks.  Eventually, they do develop.. it just takes time.

Personally, I just want a super strong rotor.  Can you cryo-treat a cross-drilled rotor?  Sure.  I think that would help.  BUT, you still have less mass, which is the same thing as having a smaller rotor.  That is why most people tend to run slots on their cars.

Checkout www.FrozenRotors.com - knowledgable folks there.

- Mike