The lack of product specific shipping has been an issue here for years, going by the forums I've seen.
Shocking lack of basic functionality on Squarespace's part! on a paid service too!
Looking for alternatives, but in the meantime the only satisfactory work around for me personally is having an integrated third party shop (via Big Cartel). It looks and works seamlessly on the site as I have my own domain name for it too. It works with the squarespace basic plan. I can also change the template if I want instead of being stuck with the inbuilt squarespace one.
Not sure if this set up will work with Squarespace commerce plan Google Analytics? but my knowledge on that is pretty scant at present.
