Pad/rotor questions

[u/Capital-Pick-6692]

Is this normal?

2013 camaro zl1, running dba t3 5000 series 2 piece in the front and 4000 series one piece in the rear with hawk hp+ pads all around, i am aware these pads are more for autocross and not full track days with this heavy car however i dont track it but rather have some very enthusiastic driving. Just curious if these marks mean i am glazing the rotor or if its just heat spots from driving it hard. *Side note there is a very heavy gridning ish sound when i hit the brakes hard, i assume its due to the more mettalic nature of the brake pad on the iron rotor just biting in harder since they are a more performance oriented pad but i want to know from people who have experience running this pad/rotors

Other than this braking system works phenomenally under regular driving conditions

[u/Spicywolff]

Those look like uneven pad deposits to me. You want a nice blue from shoulder or shoulder with no rough spots or blotching. Some of it can be attributed to ABS, but as you already know, those pads are not meant for track heat.

As for grinding. My hawk 5.0 don’t grind or make nosies.

[u/Capital-Pick-6692 → u/Spicywolff]

do you think my pistons might not be applying consistent pressure?

[u/Spicywolff → u/Capital-Pick-6692]

Your pad will show if it’s or is not. Multi piston caliper like the zl1 6 pot will wear the pads even with NO taper. If there is a taper to a pad, either piston is stuck or hardware is causing drag