I had no problem managing the brakes at track days...only if I upped the pace close to race levels would they go away...and if you are racing real close, thats the last thing you want to fail! My Z car I had to manage the brakes, but the terminal velocity my mustang was capable of taxed the brakes more. The Z car they pretty much would start fading towards the end and were manageable...the Mustang they would fade after a couple of really hot laps...I can imagine my old mustang on S06's modded out with stock calipers and drums? EEEKKKKK