Masterblader thanks for the offer but there seems to be nothing wrong with my discs, they're not warped, not excessively scored or pitted and they're all above minimum thickness. The salesman was unscrupulously trying to pick faults with my bike to knock the price down. Quite frankly I'm really bloody annoyed with that tactic, I had a hunch he was taking the piss with his lowball offer but needed to check out his rationale. As far as I'm aware Riders of Bridgwater will no longer receive any of my future business. I've spent a few quid there before on gear but they're getting no more off me.