This is how I tie the ends of my level lines:
Two figure 8s to create a loop in the level line itself, and that’s the loop I use to girth hitch. I started doing this after realizing that adding a Dacron loop (which I started off doing because that’s what people said to do) seemed unnecessary, bulky, and redundant if I could just use the line itself. Plus the level line bites much better into the lillian than Dacron, meaning you don’t really need the lillian stopper knot (though I do have one on several of my rods). I do pass the lillian through the girth hitch loop twice.