I only have to do 6 days of pre-op diet and 2 days liquid. I started early (at 3 weeks pre-op) and lost 12 lbs the first week, does this dramatic weight lose stop? Surely, you don't loose 10+ lbs a week, do you?

Wow that's a ton! Honestly I'm really jealous. I can't say what's normal or not for you. Personally I lost about 10lbs over a 2 week period of liquids. I was doing about 1000 calories the first week and then 600-700 the second.