Made HUGE list a while back with 240('ish) dumps on it, 50% never sent a single hit in a month. Chopped the list into ones that sent 5+ a day and had... 3 left on the list. So I don't use them anymore to answer the topic
I did say I'd release my list for free in the other thread but not sure if it would be ok to bump the old thread so I'll post in here that you can get my old list from my site (See sig, and at the top, click LD Database). It only has 105 dumps in it, and as I've not used it in some time I'm not even sure if they'll all still work but it might be some help to someone