OK, so it only applies if you have more than one of the very same product in the cart, rather than just more than one of any product in the cart!
Hmm... not quite what I need.
I was hoping there might be a way where I can set a flat shipping price for numerous products as I have with the handling_cart variable, but then if the customer adds a product that is very heavy the shipping price goes up to accommodate that one particular item.
Is there a way you know of to achieve this?
Thanks