Judyt: If you are on a plan using lites and you decide to drop the lites you would move up to the next colored plan. The plans flow in this order:
Green ->, Gold ->, Purple ->, Red.
I don't know where blue fits into this system as I haven't seen much posting on it. I know it is for the exercise junkies and I'm not one of them.
I also have never heard of anyone doing Green w/o the lites. I would probably starve. That must take some will power.