Ok was not a problem apparently as new data and old data all are in reasonable agreement. I tried to collect temps over a wide range of W today by testing @2200MHz and 1.6-2V and then for the last point I tested at 2084MHz and 1.6V. Here is the results of today/tonight's testing:
The W for C/W was estimated using BillA's hotside and chilled water temps to get a delta hot-cold from his data. A polynomial (2nd order) was fit to his numbers and then I just used goal seek to solve for W given my hot-cold delta T. My curve and bill's look similar but they don't seem to overlap at lower water temps. Not sure why off top of head; bad guess at W?
I might as well put all the data up for your perusal:
http://www.procooling.com/users/phae...l/newtemps.jpg