I have been doing slimming world since July 2009, with about 3 months off the diet at the end of the year because of some personal stuff. I have lost in total now 2 stone 9lbs, which is quite a slow loss for me. When I have done weight watchers in the past I probably would of lost that in half the time.
I love slimming world though and it doesnt feel like I am on a diet, so I am willing to accept the slow gradual loss, because I know I can stick to it long term.
26lbs in a year is a great loss Brightenrosie, and I do truly believe that the slower the weight loss, the slower it goes back on should you fall off plan.
I have tried having all red weeks and all extra easy weeks have even been filling my plate with superfree stuff and throwing in green days here and there but the weight loss for me is still at exactly the same pace. The only difference I have found is that since I cut down on the white carbs, I haven't got that bloating around my stomach anymore.
I know you must feel frustrated because of your battle recently to get the weight come off, but I really don't think there is anything more you can do to make a different, from what I saw your food plans are perfect.