Quote Originally Posted by JetBrooks View Post
For BiS, you're taking into account the secondary stats reached for ALL pieces, not just one at a time. I'm assuming that the other secondaries outweigh skill speed, when looking at them all together.

Best in Slot does not mean "best individual item in slot", it means "individual item as part of best possible gear set".

Really, Best in Slot isn't a very good way to put it. We should simply be thinking about best gear sets, this may alleviate a lot of people's confusion about whether they should upgrade even if a piece is not BiS (you should).
BiS should really mean "Best in set", alluding that item is best in a slot in one specific gearset.