2 things Rev:-1. You should use AutoGlym Body conditioning shampoo, compliments the polish and Autoexpress rated it as best.
2. You have too much spare time on your hands! 5 hrs, I'm lucky if I have an hour spare to wash car!!
You could always try Auto Brite on Fenton ind est they would fix you up with stuff and advice , their Project 32 detailing sprayis tip top stuff . I spend 2 or 3 hours every week cleaning my cars ,it gets me out of the house and gives the neighborssomething to talk about .