I couldn't get on with the one i bought, It just kept marring my paint. Maybe i had a crap one.
I got a carpro one, lots of rapid detailer as well to ensure no marring. Someone on Detailingworld used a diluted solution of IronX which I think is a great idea.
I can't remember who mine was by, been a couple of years and went straight in the bin. Good idea for the ironx when I'm claying next