[Tom White]

no it doesnt affect the clamps ability to hold at all tosh

Thanks, Dan!

I've just ordered a can.

[♠Winp®oClean♠]

This PTFE spray, is this it?

http://cgi.ebay.co.uk/PTFE-Lubricant-Oil-Spray-Chains-Gears-Locks-Bikes-200ml-/200588472176?pt=UK_SportGoods_CyclAcces_RL&hash=item2eb4012f70#ht_3373wt_905

Doesn't that make your SLX all lubricated and slippery so the clamps won't hold?

It's a dry lubricant.