I took a reel with fresh 20# powerpro up to the Kenai two summers ago and lost at least 4 Reds that couldn't have been more than 10lbs. Line broke in middle, not at knot.
These are the same fish I handled with 12# UG the previous year.
I am not confident with the terminal knot (always used Palomar).
I re-wound it back on the spool and it's sitting in my garage if anyone wants it.
Went back to UG and I'm happy(and confident) again.
I would use it for bottom fishing in 80#.
_________________________
If you leave things up to interpretation, there's no room to be right.