During a revisit, as I raised the question on brake cooling to the shop owner and crew, we discovered quite a few hairline cracks on my stock rotors lol. I think these are the original rotors and car is sitting on less than 21k miles right now.
Also, a few pics I snapped during the revisit.
That big'ol round spot where the OEM spring would go, now empty
Red marks are to check for slippages