My rotors began to pulsate, so I had them turned. 4k miles later I developed the same issue, so I just decided to go for some new rotors. After some research, I decided on the slotted EBCs. I read up on the G35 forums regarding this same exact rotor and that member's review of it was positive. In general, EBC rotors, have decent reviews.
Anyway, I installed these today. The picture doesn't look that great because I moved the car out of the garage to take it so what you see is the black coating being scraped off the rotor. The install was pretty easy and took a little over an hour for both sides(front only). I don't really plan on tracking the car, just some spirited driving here and there. So, I decided that these rotors would be adequate for the tasks that I'll throw at them.
So far, the pedal feels crisper. I can't really do any hard braking until I bed them in for the first 300-400 miles or so. I'll be sure to chime back in later to report on the progress.
