I've recently got back into the hobby. I'm going to try using Model Master Metalizer (buffing) on a set of wheels. I've heard that using a Qtip or a used t-shirt works great for buffing but I have a couple questions. Do you just do the buffing after your final coat or do you do it in between coats? Also, after the final coat should you wait until it's completely dry to start buffing it or do you have to start say 15-20 minutes afterwards? Thanks for your help.