Advise for Hand Painting?

[Charlie B]

You made me give this some thought. First thing I thought a surfactant would be a help. I thought about soap and there are some sites that mention using soap to reduce surface tension which would improve flow.. then I found this and it is worth a read. I am not commenting because I have not tried these items and I don't know if they would harm the durability of the paint.  golden
Charlie