Bass don't really fight much, in open water 6 or even 4 lb mono will have even a big fish to the boat after 2 or 3 runs, the issue is the cover or structure cutting your line, or a fish burying in some thick grass, or loosing lures due to hangups. I find myself using a med spinning reel with 8 lb mono, and a baitcaster with 12lb mono most of the time. Conditions will dictate heavier mono or braid for heavy cover or slop of course. I equate it to golf, your sand wedge may be your favorite club, but you wouldn't Tee off or putt with it, same here. Oh, and 20 lb braid isn't light or finesse just because its on a 1000 reel and a med rod.