I would definitely go steel over braid. Your frayed braid is the primary reason.You shouldn't have any issues putting the steel on.If you keep track of your depth finder, steel is a one and done.
Thanks. I'm a newbe to trolling. I troll for browns and walleye in NE PA. I plan to use 70yd 30# braid backing and 70 yd 15# FC on top. I use planner boards. What do you think?