As to which recips to use, that's going to vary by link site. I do have an asses/butts recip, but as you've noticed, not all do. From a quick look, you'll probably be ok submitting to hardcore when necessary.
You'll run into the same thing with movies as you did with asses/butts. Not all link sites have a movies specific category. I mix movies in with the other listings based on niche and usually make a note in the site description that the site contains video clips.
Which category frequently becomes a common sense judgement call based on each specific link site.
You do have some blind links on the sites. Here's an excellent thread that discusses blind links and how to avoid them.
http://www.greenguysboard.com/board/...ad.php?t=23441
Hmmm...yea, that's about all I've got for now
