The reason for the stats above were to show the diference between Kazaa and xolox.

When downloading 3mb on kazaa with no uploads the sent data is about 100/500 bytes

under the same scenario with xolox the sent would be 2.5/3.5mb..

The original Q. was why if there based on the same "supernode" infrastructure?

This is based over several days of monitoring not just a few downloads! Maybe my supernode is not used by the current user
base of kazza, but i'm central to the xolox network. I dunno??