[SPS-1]

I understand that's the theoretical advantage, but I don't know if it produces any tangible differences for normal driving conditions.

The tangible advantage is that it looks better (on a sporty car).

 

[SPS-1]

Yeah, I don't think the rotors are even visible on her Highlander.

Go solid.

 

[SPS-1]

NASCAR rotors are not cross-drilled. They do have small slots however.

 

[SPS-1]

I think so... OEM is crap these days

I am going to have to disagree on that, in particular to brake rotors.

I once witnessed an OEM brake rotor manufacturer dialing in machining centers on a new brake rotor machining system. Tolerances were very tight. Took them better part of a week to get everything just right.