Good day!!
I use basicly 50lb. berkly main line and 40lb flourocarbon leaders with my penn 850s &950s spinning reels.
For cod fishing i use 50-80lb dacron with 100lb mono with penn 113 reels.
Fly fishing i use #10 weight sage flyrod with Orivis depth charge line mostly and I use an intermediate clear line and only once in awhile use a floating line .
The Unorthodox Flyfisher