Yeah, I'm using comcast (nothing else in my area to use, other then dialup). Anyway I get great speeds for about 5-10 seconds, then they cap it (eg, 700kb/s down and 0-10 up, when supposedly should get 10mb/s) I find that if I throttle my upload speed below a certain point, I get better upload speed (over time.) I haven't found the exact limit, just that seeding at 65kb/s will stay that way and seeding at 90kb/s or above drops down to 0-10kb/s and stays that way. My suggestion would be find the point where comcast stops messing with your upload and just leave your torrent client on all the time.