Peter Yesis recommended that I paint something white on white, so I tried this lightbulb. I actually really like how it turned out. Pretty much every stroke required some mix of white, which was tough for me (by the way I used no black). I tend to leave out white until I absolutely can't do without it. It's something I'm really questioning. That said, I think a lot of beginner painters DO rely too heavily on white to lighten. But, this is me proving it's just as easy to go in the other direction. As with most things, I'm finding that moderation is the key. : )
