awesome, glad to see you're putting some time into testing this for us geckoday
might i ask, how many products do you have in your test store? i think with stores that have less urls to display, it's not so bad, but if you were to go to a product page that had 100+ urls, it might get a bit intensive (my employer's website has a ton of cross-referencing links over the entire site, since our site is based around music, and every CDG, Artist, and Song is a product link)
so i'll be interested to see the performance difference when used in a such an environment (i'll be testing it soon on a test version of my employer's site, haven't been able to just yet)
@hooter: glad DSEFU got rid of the template edits, that's awesome