I was under the impression overhead meant the occasional transmission of bad data (which means you'd have to redownload the piece(s)).
Do your seeding torrents show "(F)" next to "Seeding"? The (F) means forced, afaik.
Otherwise, if you meant "running concurrently" as in they all say seeding, it should be because at most only four of them are ever moving. I don't think the status changes to paused when it's not moving.
Then again I'm not a huge uTorrent user, as I just use it on my laptop occasionally. So I could be wrong about all that.
A: Oh? That never crossed my mind. It seems to work itself out and I have yet to see a glitch watching my anime even if a couple hash checks failed.
B: No "F"s. But I think perhaps that a torrent is forced if that option is unselectable after right-clicking on the torrent. As most of my torrents are selectable for Force Start. But pausing the torrent will stop seeding after a bit.
C: The 2.0.1 uTorrent client now shows a torrent to not be ready to upload when the blue up arrow turns to a light blue up arrow. Good thing my partial color-blindness is only for reds and greens, eh? lol
Tonight's experiment will be to seed only four torrents, and see if I picked the right ones, and can maintain speeds around the high 80s, all night. I doubt that I could keep that speed with say only two torrents active. Someone would come along with a slow download speed, and mess it all up, wouldn't you know?
As of right now, I have six unpaused torrents. Three are seeing, one is downloading, two don't have any leechers connected. And my overall upload speed seems to be in the same 80s range as before. Highest upload speed is in the thirties and the low one is ion the teens.