Just done my front wing with g3 and its shines up lovely going to go over it now with meguiars finishing polish to get and tiny marks out, remember polishing isn't something that takes 2 seconds you need to put a lot of work into each panel until its at a stage of your liking, go on YouTube and watch some videos on there of how people do it there's hundreds and each person does it differently to suit them and whatever colour it is they are polishing