Right on the holes not being in the surface or the crack there. My bust for stating as so, it was only passed along to me as you saw it. Anyhow, I still prefer not to do drilled rotors but how do you say 'no' to customers who will take their business elsewhere? Street, ok. Track NO. The rotor in question I was only suggesting may be the DBA unit as they too have some strange way of mounting the rotor to the hat in this center vent area. I looked at the materail they sent to me and passed on them for this very reason. The material holding the rotor to the hat has me nervous. All mine are 8 bolt rotors to the hats. Yes, you can get 10 or 12 also, but I feel this is over kill for many appliations and the 8 bolt has the best selection of rotors to choose from.
