Had my 20# floro bitten off this winter so I am definitely going up to 40#-80# floro this season. I am impressed with how the floro handles, I much prefer it to steel or titanium leaders.
You should just use 300# it can double as your anchor rope. Whats cool is the Fish..... they won't even see it. AMAZING !!!!
If I can find a piece of 300lb, I will send it to you. The rest of us mouth breathers will just stick to our 80.
I like 12 pound trilene MAX love the stuff with a braid leader only 7 to 8 inches, i dont break off.