Hi Richard,
thanks a lot for your reply.
Let me clarify: productx is a final product page (not a category page with a variety of products). This means that my productx page basically corresponds to your /final-product example.
According to your post and the htaccess command mention, I assume, that it does not cause problems, if the URL shown in the browser does not correspond to the one, the user actually took?
So no matter if a customer comes to the final product page through 1) 2) 3) 4). The URL shown could always be 1) and thats fine. Is that what you ment?
Thanks in advance