I don't know what the current maintenance regimen is, and I hope someone who does sees this and answers you. I feel silly giving advice to someone who has done so well on this program (I'm a multiple-try failure
) but I have a few ideas.
First, try it at 20. Just because it didn't work last time doesn't mean it won't this time.
Second, scour your journal to see if there's a relatively easy fix -- a sugar free version of something, or a thin sliced bread rather than regular sized bread, so that a 2-point item will magincally turn into a 1-point item. Then look to see if there is ANYTHING you can cut.
Then look at adding exercise. One of my doctors said that I would need to walk 45 minutes a day at a brisk pace to lose weight. (I haven't tried that yet. I'm totally out of shape as well as being huge.)
If none of that works, then stick to the 22 points. As you said, if you lose at about a pound a week, that's terrific. If it goes down to half a pound a week, with the small amount you have left to lose, I'd say that would be terrific too.
Good luck, and please post your experiments. We can all learn from them.