Thanks for the replies guys .... at least I'm not the only one.....!
Quite therapeutic, this cleaning lark isn't it?
I borrowed a friends Dual Action Polisher and experimented on the bonnet of our Corsa yesterday. Scholl S3 compound and then Auto Glym SRP.
What a difference! A bit more practice and a bit more courage and I might have a go on the 75
My friend recommended Scholl S20 Black which is a great Compound & Polish in one he said.
(Sorry, this should probably be in the Valeting section)
Bfn
John