If you check this technique out:
http://www.gnutellaforums.com/showth...912#post120912 You'll find it works & can be quite effective (I wrote that for a beginner but the principle applies.) In fact I was doing that earlier. A downld would slow down to zero so I'd stop it, & then reselect it from the search results. And occasionally searching again to see if I could find fresh sources & another bit of enthusiasm to jerk the downld back into action. I've been using that technique for a few years since LW2. lol But it works with those difficult ones.
Generally I just turn LW on & leave it go & it looks after itself. But on some days I need to slave over it. Like today for a few.
But then again, this should not be happening to all your downlds! If someone's uplding from you then you generally get better results all round. (Sure there's going to be some you can't connect to but they're exceptions.)