Basically Ive been using the Meguiars 3 stage polish/wax stuff for a few months now. However Ive just bought some the #21 stuff from Shaun on here. What I want to know is what should I be using? What would be an ideal cleaning method, and what products? Should I clean then use stage 1 stuff, then the number 21, then maybe get some NXT wax, or P21-S or Meguiars #16?!