Grooved discs
A little bit of grooving on any disc with race pads is nearly inevitable. I don't think I've ever tracked a car without having some sort of minor grooves appear on a disc. When I worked at StopTech and had their brakes on my C5 Z06, the discs looked like Pringles! That said, I never had any problems as a result. As Dave was alluding to, if you're tracking your care frequently, you're going to crack your discs long before you run them thin...period. So nothing to worry about there.
Hanakuso,
Your discs are not warped. And yes, the hat is seated properly on the disc. Please don't waste your time searching for a "problem" because of a little squealing. That's just pad interaction on the disc face. When you run ANY pad hot on a disc, it's going to leave a film of pad on the disc called a transfer layer. All pads are different, and how much and how thick the transfer layer is will be different...and how that pad reacts with other pads is going to always be different. When swapping from street to track pads, you have to manage the process.
Have you ever seen this video I did? There's another one on there about bedding pads as well.
If you guys start running into massive judder/vibration (you hit the brakes and the brake pedal and steering wheel go thunka-thunka-thunka), then you need to start looking at solutions...and you will know if, when that happens...and that can happen, even with the best system. You just have to know how to manage your brakes.
From everything I've read/seen in these last two pages...everything is working awesome, and as intended, with our systems under heavy track use. No brake fade, no judder, soft pedal, no odd pad wear, no serious disc cracking even after quite a few events and extended hot lapping sessions. Is that a fair statement? It's obvious that some of you have been to this rodeo before, and others have not. Those of you who haven't just need to understand/and learn about what you're seeing and how brakes react to getting cycled at 1200 degrees F over, and over, and over again. I'll do my best to show you that. The videos on our website will help a bit, and I can answer other questions. Finally, if you're ever unsure about something, just call me! :happy0180:
Off to a meeting...I'll check back in later to answer any other questions. Thanks.