Gave it another 'go' yesterday, what a mess!

It won't do the calculations with merchant calc shipping, only when Google Carrier Calc is selected.

I have Free Options selected for shipping, and it won't carry that over either.

I only ship to the USA, so all of the international shipping methods are disabled, but it still carries those over. The instructions indicate to "comment out" those options in the code - why the heck do that when they are supposed to be disabled on the backend?? It's double the work.

What a PITA.