All good points. To add some clarification that I should have in my first post:
1. OEM rotors
2. ECS Tuning braided lines - all 6 of them
3. Motul 600F fluid
4. Porterfield R4-S pads - Wore those out in 1 session @ Gingerman
I just placed an order for a new set of OEM rotors and some Performance Friction Pads with 08 compound. If that does not improve things, I guess I'll need to look into other options.
As far as Rotora goes, this was the only budget BBK kit that I could find. Yes, I know that RB offers nice rotors and calipers, but I am concerned about the pad availability. I've not found any good reviews for KSport BBKs either.
RB Rotors look very very tempting. If the heat situation does not improve, I might have to get a pair.