Hope I can shed some light here.

The 10-12X thing comes from Protein Power, I believe. Of course YMMV depending on your activity level....LBM (lean body mass) and the rate of your metabolism.

I think that the determining factor will be how you are losing. It's not unusual for us to stall if we aren't eating either enough calories or carbs.

I can also tell you that I maintained in the 140's for five years on Weight Watchers maintenance at 1000-1200 calories a day....and I was starving. Now.....I'm losing weight at 1800-2000 calories a day on LC. And I'm much happier with the food I'm allowed.

Just keep tweaking your plan until you get it to the perfect fit for you! And using Fitday.com will help you to keep track of exactly what you are taking in. That and keeping a journal where you post your menus daily. The advantage to that is that it allows some of the eagle eyes around here to take a look and make suggestions about how to tweak.

HTH
Marlaine