Juule, if you're near to BMI 25 (i.e. within the normal range of 20 to 25) then that's probably why you're not getting as large losses as some people. The more you have to lose, the larger the initial loss. Sounds like you're doing just fine.
I suspect (don't know for sure) that once you're near or in normal, healthy BMI, you don't do SS because the Cambridge Diet people don't want to "condone" what might be seen as radical, or unhealthy weight loss. SS is about getting people back to a normal, healthy weight and the other plans are then about maintaining that weight. From what I've read, people doing Add a Meal, 790, etc., do still lose weight, but the rate usually slows right down ...... so, if you stop SS when you're BMI 25, chances are you'll end up at a lower (but still within healthy range) BMI by the time you've done your weeks on all the other plans. If you did SS right down to BMI 20, say, and then did the maintenance plan, you'd end up underweight.
Alternatively, if you did SS to BMI 20 but didn't start re-introducing food & more calories bit by bit, the danger is that you'd not actually "re-educate" your stomach (and your eyes in my case) re: sensible portions, sensible choices etc. and instead just "go for it" and maybe undo all your good work.
Of course, I might be wrong as I'm not a counsellor, but all that waffling kinda makes sense to me.
Meb ...... it is so bloody hard isn't it .... I am back on SS this week after a week of eating when I was in hospital and ill, and am finding it a lot harder this time round to stick to it than when I very 1st started. I keep trying to tell myself it's a short term pain for hopefully a long term and very wonderful feeling gain. Only another day & a half until my next weigh-in.
BTW ...... where is Mrs Poppins ? I haven't seen her around for ages, and am assuming that mummypoppins isn't the same person ?