There's no doubt that we're all suffering more from fatigue at the end of a cycle. Personally I find the increased number of early start duties completely knackering and they really set you off badly to the cycle. Now it seems that, at my unit, there may be more on the way. I'm not over 50 but getting that way and nights don't particularly bother me but everybody feels the fatigue individually. I find the question of the effect of starting earlier and earlier very interesting as getting up at, say 0445 for a morning which is going to be at high pressure all the way through didn't seem to be an issue all those years ago when the fatigue studies were being carried out for CRATCOH, as it was then. Anyone remember those personal studies? A new one now would provide some interesting data!