I notice that at any time I might check my own stat prog. I have a 300 pv lag on AS. AS is on nearly every page but not every page so I would expect a discrepancy but not so high. Does anybody else notice a regular lag between PV and AS impressions? I realise as I am typing this that I am being too simplistic and there are older pages where I might have 3 instances of AS. Nevertheless, I'd like to know, do any of you notice a regular lag and if so, of how much.