an interesting experiment to try is to use shareaza and LW immediately one after another (or concurrently I guess if you have the grunt) - what I (at least) find is two interesting things - first shareaza connects to the same sorts of clients except that BS connections are common, stable and lead to downloads (unlike LW) and two, the ultrapeer connections remain fixed for FAR longer than is the case with LW - not entirely sure which setup leads to the best results 'at the end of the day' and I prefer the LW layout/design but it does suggest that LW might usefully give attention to the ultrapeer connections cos the greater ultrapeer volatility with LW can't be just attributed to 'thats just how the network is'

Cheers, bad_vlad