which rotors to upgrade, J hook or slotted?

MD-370z

Hi fellow Z owners,

So i posted in the akebono vs bbk upgrade thread thinking about going to a bbk, but after much thought i have decided to stick with upgrading rotors and ss lines.

Now my question is to you track guys, which rotors should I go for I'm looking at stillens specials on their rotors today and am thinking either between slotted or the new j hook design. They say the J hook is noisier, just wondering how much noisier it will be, does any one have experience with them, or if not which one would you personally choose?

I will track my car for 20 minute sessions only but likely will do this every two weeks starting in may till around september, if this makes any difference in the choice, thought I would add that little bit of info!

thanks in advance,