Seem expensive for what they are. The other question is who is providing the blanks? They don't manufacture blanks and they explicitly call out the slotted rotors as being manufactured by Powerslot. If you're dropping $150 for a treated rotor that is based off a $50 generic blank, really not getting your money's worth. You have to determine if they would last 2-3 times as long as a set of generics to justify the cost.
Its an interesting concept. I could send them my BBK discs to be treated, be interesting to see if they lasted longer with auto-x / light track events, but would still cost $300 to have all 4 done.
