It's taken me 4 years of trying different methods, and I haven't been completely happy with any of them until today.
Tried something different, started out with a wash - with dish washing detergent

Then hit the car with Meguiars Ultimate compound, followed by Zaino Z2 polish and then Meguiars Ultimate Wax. Three passes down from five, still four hours work though, but this time, I'm finally happy with the car!
I used a random orbital buffer for this by the way.
Spray of Isocol was used to remove the streak marks left by excess wax, worked a treat.

