i think that makes sense, it 'seems' that if you have a lot to lose it's easier to lose it, but it's relative. 3lb weight loss is great, but if you have 6 stone to lose it's 3.5% (i think) if you only have 1 stone to lose and you lose 1lb it's 7% (i think!) so although 'lb' wise the first person lost more, percentage wise, the 2nd person lost more.
is that at all relevant?!