Often, when I (re-) start a torrent seeding, I'll see that BitComet is downloading at something like 4kb/sec, for about 10 seconds. There's no more of the torrent to download - so is this just tracker communication? I would have assumed that tracker communication would only require a seriously small amount of data to be downloaded, not the hundred or so KB which I can infer (from BitComet telling me that I'm downloading at a few kb/sec, for about 10 secs).