I've just started hitting STFs heavily. I think I did maybe one before I started on tribble. I've probably done 5 or 6 so far today alone. One thing that throws me off is what happens when loot pops up. It would come up need, greed, or pass. Pass is pretty obvious. In fact, I usually press pass 9 out 10 times.
But what's the difference between need and greed? At least twice I've missed out on a piece of rare borg salvage.