4Salt,
I hear ya on the 70 degres factor.I run 20lb ultra green main line,0 size dodger to a 3/0 red gammi on 30lb ultra green leader,I'm also running the 65 to 80 foot depth with down riggers.The bottom line is 20lb leader was not gettin the job done so I switched to 30lb and never had a problem since.I let one of my buddies use a dodger
which was a half and half he was useing 12 or 15 pound main,he ended up losing that dodger.Have you ever tried to find a Half chrome / half brass "0" size dodger during a sockeye season.Believe me they are hard to find.I'll stick to what I know will put blood in the boat during a rare and awesome Lake Washington sockeye season.Good luck,
STRIKE ZONE