I need some advice on handling touch up areas. After masking and airbrushing, I almost always have some bleed through somewhere. Touching up with a brush sometimes makes things worse. It's probably due to using the paint straight from the bottle.
This gets off onto another topic. If I thin the paint for brushing, I always pull out too much, and either try to store the excess, or end up wasting it. The only option I can come up with is buy two bottles to keep one thinned and the other not.
How do you guys handle these situations?