I'm the same way, I have the main unit and a backup FARS shield both with the SHT-31 Davis and just swapped both out with the shorter 24" cable length and both shields match at night to the tenth. During daytime, they can wonder apart a couple tenths because they don't face the same direction, so depends on sun angle.

A more relevant question is what level of staffing and organization structure is necessary to produce the current forecast granularity (1 Sq. KM)? 

Remember, the current NWSFO organization structure was mostly based on the range of the WSR-88D radars, not on how efficiently the tasks might actually be distributed amongst the staff of adjacent offices.

Correct.  But I remember the hue and cry when the current NWSFO organization structure was implemented 30 years ago.  Every Congressman didn't want their personal Weather Bureau office closed, and moving the NYC one from the RCA building out to Yaphank seemed absurd.  But it worked out.

It's about time to look again at what work needs to be done in each office and whether it could be made more efficient.  For example, each office preparing a local forecast that is essentially similar as the one the next office over also  makes might be room for consolidation of local forecasts between two.  Similarly the Warning meteorology function might be shared as front moves through from one office warning area to the next.

So saying current staffing levels are sacrosanct without looking for how to streamline the work to eliminate redundancy is foolish.  "Authors of the Storm" is a good book explaining the culture within the NWS.

It’s not for a lack of effort. I’ve even swapped sensors in the past to ensure it’s not sensor specific. Certainly overly obsessive.

In 2020 I moved from Northern California to Nikiski, Alaska and set up my station that I brought with me. To say the least it has been an interesting adventure.