Ah bummer! Definitely not resolved, just have been too busy to deal with this.
I agree that there will need to be some currency settings implemented to work the subtotal threshold in pounds rather than dollars, but if the code worked, you’d think it would be working for orders above/below $135 USD. So I think my initial problem is that the code snippet doesn’t seem to work.
Considering this is such a big change to e-commerce I’m really surprised there hasn’t been more documentation for this.