I have painted a bunch of those and occasionally I get a few that won't track. I fixed a couple by gluing one of the big balls that are inside to the top to the screw in part so the ballast won't move around. Also make sure you screw in all the way so the o ring doesn't show. I don't use that much clear, I usually dip twice in DN which would be maybe one coat of Etex. You definitely have to tie onto a split ring, very few baits run true tied to the ring itself. As far as your line, braid does float so crank baits don't work as well with it as mono or flouro. Those baits also work much better at a slow to moderate retrieve, they always flip over at high speed. I use them over submerged grass or shallow flats and work them around rocks and weed slowly.