I would love a Mahvelous Marvin Mahl Stick support. How can I get one?
(Incidentally, if anybody is interested, the new Betty Edwards book
Color suggests that artists make three separate color wheels - hue, value and intensity. The 12-step circular imagery is to me easier to manage mentally - a handier mnemonic - than is a linear progression (that is, you think of a value being at 3:00 rather than further down the line) Practically speaking, I haven't figured out how to set up a palette this way, though. Sorry for digression.)