Thanks guys for explaining the mechanics of the shield.
I am very happy with the way been running so far.
Much calmer wind day today with mix of sun and clouds throughout the day.
Has been very stable temp throughout.
I have the SF2 Cap installed as have since setup station 2 years ago.
Few more quality suspect points today on Mesowest because of dewpoint variance again today, but am starting to suspect is function of data quality around me.
Not going to worry about it as know am running shield to build specs
Thanks again
Frank