I do agree Bren, they arent a be all and end all, i tend to use em like a pregnancy test, first thing in the morning... for example this morning they were near the darker end of the range, but if i did one now it would be nil or trace.
Found today difficult, feel a bit bored of the soups and bars... think i may just order shakes next time... really not feeling the bars at all.. they make my mouth all gritty and fill me up too much?