Deepend
I had my uploads per host set to 5. The reason I had to make it two uploads is because of the ******* morons that will start downloading 3-4 700MB rare videofiles at the same time.
BTW I am not on all the time, but every day for 4-10 hours so everytime I start up Limewire people get 2 more files. And if you and others would follow my advise there would be no problem at all
Everyone is not on all the time. Some have monthly downloadlimits from their ISP's, Others have a unreliable connection or are badly set up or both. Some are using Laptops that they have to use for other things as well as P2P and a million other reasons. I bet 95% of your unsuccesful downloads are not from people killing your download, if not 99.9%.
Also uploadslots should be set so every slot can deliver at least 5 KB (others may disagree, but I don't really care) I have 50 KB up on 5 slots because of video
Check out the this thread. It explains how to best get succesfull musicdownloads
How to find music