[BillA]

to answer the inevitable;
I left with this still as a prototype, with the obvious suggested development
such seems to have occurred (but I've not seen a bp), and if so the results are plausible given the 'starting' point
(and again, if so, good work by the designer)

all previous products graphed together were tested in the same manner with the same equip with the same cal
(at least it was so, and I suspect still is just due to the timing)

EDIT
nice post David, yes that is the direction