I think you will be better using a product that will fill rather than be abrasive. Purely for the fact that, you are just NOT going to touch the paintwork on a golf by hand.
Another reason, i see so many cars where the owner tried to get rid of things by hand and ended up putting more serious marks into the paintwork.
I can completely understand owners wanting to try themselves by hand, but it normally ends up worse.
So, Id recommend Auto Glym Super Resin Polish, then a wax.