I certainly hope they haven't let their process change. I just ran out of my supply from last year (manuf date Feb 2006) and bought the last 5-lb jug (manuf date Feb 2007) from the Provo Sportsmans Warehouse on Friday.
I'm sure I'm no help to you as my load has not been chrono'd as much as I'm sure you did. I did run ten '06 Ackley Imp with the 180 Nos AB, Win 1x fireformed cases, Fed 210M primers, 68.5 gr, over the Ohler M33 about 3 weeks back with an AV of 2997, ES of 37 and SD of 13. I don't recall my Lo/Hi. I'm sure I'll be chrono'ing the new jub before too long and will try and remember to report my findings then.