On the streamer rod, I rigged a 7 foot 3x leader. I conehead Black Wooley Bugger completed the ensemble.
As I swung through the middle of a run I got a mighty swipe and surface roll from some sort of fish that snapped me clean off so quick that I think I actually cursed; it's a bit of a blur (that plays in an endless loop in my brain).
Which brings us to Painfully Obvious Tip™ #5:
When swinging streamers in a river where you have been forewarned that there are large fish, try something stouter than 3x.I cut the leader back to about four feet after that brilliant move.
No further break offs.
Sadly, no further monster fish on the line.