Hi Neal!

It almost sounds like you're trying to do Slim Fast ala Atkins. While those shakes may be handy and tasty, they don't do much for teaching you how to eat in the long run unless you plan to continue to live on shakes for two meals a day.
I agree with Talon. Shakes are okay as an occasional snack or treat, but don't rely on them as meal replacements; you need real food with plenty of fiber and nutrients that you can't get in a can or pill.
BTW...congrats on losing that 10 pounds! You're well on your way to your goal. Keep it up!