[BillA]

"If we start with one target, i.e. being able to measure a die/cpu temp accurately and repeatably within 1.0 deg C (which is rough, but it's a start), then I believe that the discussion can proceed."

3 lines of text and you fell off the rails
properly define the goal please

Ben
procooling does not need a position (there is no single CORRECT solution)
those wanting to do something will gather what info they need and proceed
you will have to make your own choices, then do battle with those wanting the temp from a different spot