I do get a deal on these; however, this is an opinion based on beatin' my stuff up on my K5 AND(!) my big pig of a Thumper "Dual-Sporter".
They're an OEM supplier for just about everyone...from Braking to Kawasaki to the Yoshimura Suzuki Road Racing Team.
They make things one way:
Right.
I've been running their stuff for about 4 years. Their "Wave" rotors are awesome and look pretty cool, too.
I've been running both their pads and Kawi's on these rotors. The results are about the same.
Copper Kawi's are a lot like Galfer "Green" pads. Get whichever is cheapest.
Their "Wave" rotors work as well as Kawi's "SR500 kit" rotors (Nissin Works parts).
I'm writting this after riding 2 up in some ugly, wet, water-crossing infested Mountains that are really just a giant stack of Rocks!
My brakes AND my tires had me AMAZED!
Manny