I'm getting really mad about this now - I'm just going through the 'dupe' products to see if I can change the wording to make them more different. We sell some neck widget and matching wrist widget so the items are almost identical and our shopping cart has a facility for linking the products together for the customer's benefit. Just the act of linking the products makes the pages so similar G can't tell them apart. I'm having to unlink all the linked products - we are supposed to design sites with users in mind, and then this is what happens!
It's times like this that you really wish you could pick up the phone and speak to G to tell them just how illogical this all is.
The only alternative to me is to buy another expensive shopping cart for £800, which allows you to list products with options all on one page instead of having individual product pages. Thes3e sites don't seem to have suffered the same way.