Thanks for all the replies, everybody. It's very helpful.
Mr. Mattelson,
I started out with six colors (split primary), and when I actually painted I used less than that. But when I got the Faragasso text and started doing all the exercises, I decided to buy exactly what was specified. So now, I've been practicing mixing the nine neutral grays, mixing the ten-color Munsel wheel and creating nine values of each of those colors, and making chroma swatches of each hue. I've got enough homemade color charts laying around to paper the White House
Now that I have a little better handle on color, I want to reduce the number of paint tubes, yet still be able to make all the Reilly charts. Unfortunately, I've found some rather unique pigements in my Rembrandt paint. Like PR101 for Raw Sienna and Burnt Umber, PR254 for the Madder Deep, and a couple others. I was just curious. I'm probably going to replace the Rembrandt earth colors with Old Holland, I love the rest of the set though.
Thanks again,
Minh