Skip it...not fun at all. I did lose, but I think it all came back. But I had a wacky weekend refeed right after that. In all I'm glad I did it so I'm not curious anymore, but I don't think I'll do it again. Refeed maybe, but not fat fast. I've found I lose more quicker and with less effort if I'm realisitc about what I'm eating and counting ALL carbs, including the ones in sf gum and splenda! Even if it says zero I still check around and add a carb just to make sure!
Also cut out ALL Malitol/SF candies...and I mean ALL. It'll kill your efforts QUICK!
And most importantly...just work out...very easy going for me and I lost about 2 lbs in a week...I excercise at a very moderate level (I can still hold a conversation) 4-5 times a week. And drink lots of water.
All very common sense stuff we all already know!
Good luck