First track day I put new pads on and did not have much time to break them in so I just drove it. Right away it felt like my rotors had suddenly warped to hell and back and the wheel was actually shaking. It felt worse sometimes vs. others in that session and seemed to get a little better as time went on. Checked wheel torque, calipers not loose, etc. there was all kinds of ugly pad deposits on my Girodisc 2pcs rotors. this is stock Brembo Brake GT. By the end of the 4th session they were smooth but loud in an aircraft landing braking way it seems those slotted rotors get loud on this car.. but they were not vibrating and having an effect on the steering wheel the warping seemed fixed. Fast forward a couple weeks later on a cruise to the store I braked from higher speeds hard and it feels like they are warped again ignore the horrid squealing noises. So do need new rotors or is this pad material? also looks like uneven heat patches like the first 3/4" of the rotor coming from the hub are normal and the last part is darker like its been toasted. Got some new ceramic street pads going back on. Thoughts??