I started at 15st 2 and finished at 12st 8. The last couple of weeks saw a much reduced rate of loss. I think that I was beginning to adapt, and that's mainly why I stopped the diet phase at that point.
The last three weeks, i have adopted a more relaxed approach, (just no white stuff except cauliflower, plus the occasional treat) figuring that it would be beneficial for my metabolic rate to return to normal. One thing that I have noticed is a reduction in pulse rate, from 60bpm down to 45. Not sure if this is good or bad, but since I havn't noticed any other problems, I'm thinking that its OK for now.
Weight has gone up to 13st 12, but I'm happy with that. My gammy knee stops me from serious aerobic exercise, but I'm walking for about 2 hours a day. Did another 75g OG test with 2 hour levels at 7.5, so it still looks good.
Good luck to all the recent starters, it'll be worth it.