You can get the thickest foam with a snowfoam prewash cleaner as the one from CG you got. Try to add about 100ml of product and fill the bottle...
You can effectively clean metal gauze with neat hydrochloric acid. It will remove 100% of the residues from the iron steal.
I've got a Desiderio Plus very well built made in italy machine. I'm not sure if it is on the UK market....
Probably i'm missing something :) Nice job, that is how a new car should like!
The more the speed the more the heat on paint, pad and backing plate. If you polish a plastic panel you could melt and deform it.
Different markets have different charts, it's a total mess. Just an example: PO85RD is SF4500 in US, FF3000 in UK, UF5000 in Australia
Separate names with a comma.