I have purchased the Borgo 10.0 CR piston and Liner set from Centerline, and I have been very pleased with it. That said, I wouldn't expect anything else, as this is a Borgo kit, and I have always had excellent service from Centerline. As far as the 10% discount, I know I have ordered many parts from them before, and received the discount. However, I don't recall if the discount did or did not apply to the piston kit, and it wouldn't be fair to guess... Anyway, I think it's best to give Centerline a call (1-888-750-ALFA) and hear the discount policy directly from them... (No matter what anyone says, they are the only ones who can tell you definitively what their policy is...

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Best regards,