It's natural for a high % of incomplete files not to continue if they can't find enough resources.

Check your fine tuning of LW, see these threads for ideas: http://www.gnutellaforums.com/showth...5&pagenumber=1

http://www.gnutellaforums.com/showth...threadid=27036

http://www.gnutellaforums.com/showth...threadid=27285

http://www.gnutellaforums.com/showth...threadid=27754

It's a little bit of reading but may hold some important points you've missed. Personally I find the more files I share the better & faster connnections I get.