My first few baits was probably 4's, but you will get a lot better, the more you paint. It takes a while to learn eveything about painting lures. Try not to get too frustrated, when you have a mess up on a bait. I use to let the mishaps get to me so bad, I almost gave up on painting. Putting an hour into a bait, then mess up and have to start over, would drive me nuts. I talked to a good friend, that has been painting baits for many years, and he said that he still slips up every now and then. After that I never let a mishap bother me again. The mishaps will get better over time, the more you get used to the airbrush. Beware, its very addictive