It was about 8-10 pounds all together. The 6 pounds of initial weight loss included some water weight, and wasn't all fat. That's usually how it goes when starting a diet. You have to burn 3500 calories more than you consume to lose 1 pound of fat. Fat loss should be 1 or 2 pounds per week
I'm a firm believer in tweaking, because you have to enjoy the diet in order to stick to it long enough to see results. There really isn't anything magical about the Fat Smash plan, it's as good as any other. If you include all of the food groups, then it is healthy, and you will lose weight as long as you don't overeat. But if you change a few things here and there, you should still lose weight as long as the foods you choose are healthy. For example, I just replied to a thread about veggie burgers. The book says they are ok if they don't contain cheese or wheat, so that's how I answered. But I think that's a very trivial thing to consider, and I ate them anyway and still lost weight. That's just me - a diet rebel

I like diet guidelines, but I'm not hard core.