Spiderwire Stealth in 20lb / 6lb diameter is the way to go in my opinion. I use this set up for Open Water Trolling, Contour trollling, Pulling Blades and Fall Trolling. You could get away with lighter test IMO for everything except Fall trolling. Just Ask James.
I quickly (less then 10 minutes ) loss 2 of his primo tuned HJ’s last Fall to the rocks with 15 lb Spider Wire Stealth
He made me use his 20 lb reels after that.
Never an issue again the whole rest of the Fall (I respooled all my lines to 20 lb after that night).