Geez, yet another problem which I wish I HAD ..
But I think you hit on something important with "age" .. If I had DS @ only 22 (instead of 2x that age) I have a hunch my weight would have dropped a good deal more than it did before the honeymoon period ended .. We just natually have such a high metabolism when still that young .. I remember getting down to 169 lbs. @ 20 by eating very little for a month or so (I think it was typically a glazed doughnut and a pint of milk a day) .. No way that would have happened that fast or easily @ 30 .