Just stick with uT then... no need to be frustrated...
Yeah, your post was really helpful. Definitely.
@Switeck: I never set my upload rate more than 40% of my real upload bandwidth. I tried different setting, like even lower rate on uT than Qb and the other way around, qB still is Stalling or downloading with very poor speeds. This same torrent file downloads much, much better on uT. I want to use qB but practically I can not having Stalled or poor speeds all the time.