I updated the template to the newer version this morning. It requires reworking things. I'm disappointed to see that I can't optimize css with this either - both ThreeNotchPlace and RichmondBaskets (which were done fresh on Joomla 3.75) work wonderfully - I don't understand why it won't work here.
I need to make the module styles too.
I've still got a lot of changes to make but I need to get my clothes on and ready for the day.