Well I ended up taking my Davis vue down and found my weather flow performs better at the moment and had been recording rainfall, temps, wind on par with my vue.
I do find since I got an ambient radiation sun shield has helped with better temps from the air unit, but moved and mounted it around my yard in several places till I found the right spot and it's in line with every weather station around me and within a degree in C and matches nicely with offical temps here.
Got to 21C here and my weather flow maxed out to 21.1C which is pretty good it feel.
In some parts of the day may very by 2 degrees but levels come right, same as my Ecowitt will very slightly depending on sun height, etc , and my vue also did but is to be expected if you have no fan to circulate the air, so very impress so far and very close to offical temps and stations all around me only very about a degree.