Cheers
.
You've got some nice products there.
OK, as with most things the key is in the prep. A soaking in an All Purpose Cleaner (APC) to get off most of the muck is a good start - maybe I'm teaching granny to suck eggs here
. Then shampoo, then clay while she's all nicely wet and lubed with the shampoo. The Autoglym will be fine.
Personally, before the shampoo I'd use some fallout remover to shift iron particles from the paintwork. It's simple and quick and you'll probably be surprised just how much is imbedded in the paint and especially on the wheels. I use this:
https://www.car-chem.com/shop/iron-detox-fallout. You might need some tar remover too - you don't want tar anywhere near your polishing pads
. You'll probably need a good rinse off and maybe a quick re shampoo. The last thing you want is bits of muck left on the paint for the clay to pick up and spread around
.
I'm a big fan of Car Chem as they are actual manufacturers and are just down the road from you in Nottingham.
https://www.youtube.com/watch?v=b-SEoFFnB0Y. Maybe lock up your wallet first
.
If I remember correctly the Amigo & the (super) resin polish are very similar so just go with their instructions and yes, apply the wax by hand - it's a very good product.
Enjoy yourself and Good Luck.