Ok. Thank you.
1. I did change to .thumbnail in the views before, but they are still huge. Most are like this: http://ekologiskt.se/store/thumbnail...-500g-biofood/
I guess the merchants don't have thumbnails in their feed then?
2. I tried changing url to %li and %lt. The only thing that happened was that a lot of images disappeared, the image the url is pointing to does not exist on the server.. So I had to change back to the default setting. (PS. I'm running a Wordpress multisite setup).
3. With the default setting, as you can see with the image above, it redirects from http://ekologiskt.se/store/thumbnail...-500g-biofood/
on my own server, so I don't see the difference, except for the redirect, which of course I would like to avoid as it adds to the page loadtime.