I'm setting up for trolling big streamers and buck tails in a lake. There are browns, rainbows, pickerel, and lakers. I have an 8 1/2' 6 weight, an old Pfluger 1495, and a Cortland WF6S line. Anyone have an idea what I should use for backing? Length and pound test. The potential is there for some pretty big fish, plus the weight of the line. I'm hoping someone on here has some experience with this kind of fishing that is new to me.