Hi Mickster, I have around 8 stone to lose to reach the mid-range of healthy BMI but I also have a goal before that to lose at least 5-6 stones before my wedding in July! I had no choice but to start on 810 because my BMI was over 40 but I have to say that has probably been what has kept me on this diet (for the whole 11 days I've been on it!!). You tend to lose about 3lbs a week instead of 4lbs as you would with SS but I'm so much more grateful for the extra meal and the feeling of eating proper food so either SS or 810 can be an option should SS become really difficult. Well done for sticking to it so far though, lack of sleep really does affect you more than you would think on this diet and it can also cause you to be a bit more restless at night so get that lay-in whenever you can and drink lots and lots of water - around 4 litres if you can!
When I reach my 2 weeks and hopefully feel less light-headed I hope to increase my activity and burn around 250 more calories a day through gentle - moderate walking and therefore lose closer to 4lbs than 3lbs a week!
Best of luck and let me know how you get on! xxx