So I figured out how to add imperial/metric detection and conversion and seems to be working. I’ll put to Samer to see if he is interested in taking into the weather and app master branch.
I have written this as an upgrade to the existing Zimmerman adjustment method rather than adding a new Zimmerman2 to the pick list. I could change the approach and implement this as a new method if that would be preferred. I guess it depends whether current Zimmerman users believe this is a natural enhancement or an unnecessary complexity 8) Thoughts?