I use AG Super resin and have started using a couple of applications of AG Extra Gloss Protection (EGP). The EGP is a liquid and you wipe it on wait 30 minutes and wipe it off. The top guys on here do about 3 applications with 12 hours (to cure) between each coat.
You will notice a difference, bird crapo for example will fall off the paint and your life is easier when you come to clean.
You can now wax over the top but you'll have to buy outside of autoglym's range for that. One of the other fellas will recommend better than me, since comming on here and reading posts I have learned more about processes than when I used to valet for a living years ago.