Chaps its up to you to decide.... you can always pay a detailer to do it for you.. By all means use another product I am just trying to explain what is in many peoples experience the state of the art. If you don't want that or cannot afford the time or products that's entirely up to you.
Personally if I have spent £30,000... £40,000.... £50,0000.... etc on a car I don't see 5 hours as spending too much time. It all depends how much you want to protect your investment.
