I was thinking about buying a Porter Cable 7424. I am definately going to use it to remove the surface scratches and swirl marks on my Caddy but how useful is it when used with AIO and Zaino products? Is it usually easier to remove by hand?
I have the 7424 I use it with Wolfgang sealant and signature series wax. I like to apply by hand and buff off with a MF bonnet. Just my personal routine- have not tried Zaino cant help you there but have use AIO and SG- found much easier to remove with buffer.
AIO is awesome via PC, and I don't know about Zaino because I don't own any. If you are going to try to remove scratches and swirls, you are definitely going to need a PC and some more abrasive products than just AIO and Zaino.