I didn't feel comfortable with the extreme change in fill time for CP4 of late being just the increase in ambient temperature alone.  As such, I decided to do another fill at the 48 hr. mark instead of waiting for the nominal auto fill which wouldn't be until Monday (72 hr. mark).  

Attached is the data.  Any chance that we are seeing the needle/seat beginning to show signs of an ice ball obstruction?  "I'm just saying!"  As shown in the plots, I set the LLCV to 70% open for 30 minutes and then increased it to 100% open.  The exhaust temperature finally responded 5 minutes after being increased to 100% open.  I went out of the building and cracked the manual bypass valve and personally observed LN2 at the exhaust.  I increased the nominal value to 44% from 42%.  

Note that I also verified that the valve stem pointer does agree with the CDS 4-20 mA output %open values so it isn't like the valve isn't opening etc...  Also, the dewar head pressure is ~10 psi, which when combined with the liquid height should be more than adequate to make the elevation "hump" into the 80K pump etc..