Stones and Lbs not setting as default

We have the defaults set at Stones and Pounds but when you go to open a new customer and add their details, the default is set to kg in the drop down box.

here is the settings page screenshot

https://snipboard.io/r7qE4i.jpg

here is the user details page I refer to

https://snipboard.io/1CjyUO.jpg

I would expect all system defaults to change to Stones and Pounds if the main settings are set at stones and pounds

The page I need help with: [log in to see the link]