After the TWO sets of Raysbestos rotors that were both out of round & out of balance, I’ll avoid be avoiding them.
Ironically the Raybestos slotted rotors on my red truck have been great.
I did however have similar issues with the Raybestos R-Line drums on the rear of my Suburban. At this point I'm inclined to just have my mechanic source rotors and drums for all future brake work. At least then he can check and turn them fresh out of the box. I think everything drum/rotor related is kind of a crapshoot these days...