Whats With The Captical Letter At The Start Of Every Word, Arron?
LimePrime can give some impressive results.. Esp. if applied by DA/Rotary..
Use it before waxing, yes. This sets the base and allows waxes to bond properly. If you're to use it after washing, you will strip previously applied waxes. It's a 'cleaner'.. it cleans the paint..
Might be worth looking at Dodo Juice Need For Speed; this is similar to LimePrime, but, contains a few protectional properties.
*EDIT, you beat me to it.