I too have experienced problems with Limewire when sharing large amount of files (16g). I now only share about 100 at a time. When sharing large amount of files I could not get many downloads successfully.

Hint. Modify limeware JAVA properties file to increase number of possible connections. GUI edit prevent you from exceeding 6.
However, by directly editing the propertie file with notepad you can avoid these edits. This is the attribute KEEP_ALIVE=19. It shows up in the Connections tab as "keep approximately # connections alive"; where # = 19 (for example as in my override).