well i've just switched to WW from SW too! been on SW for 4 weeks lost 4lb first week and then put on 0.5lb per week or STS despite following it and keeping food diary. have switched back to WW as I lost over a stone on it last year so know it works 4 me, not sure what it is with SW but doesn't seem to agree with me (this is 2nd time i've tried) so got myself a monthly pass and will get weighed at class on Thursday (at work!) fingers crossed for next week's weigh in