When going for big fish I would'nt use a teaser. Too much can happen with the extra hook when a nice fish is connected to the plug. When you know there's small fish around, like early spring and sometimes in the fall, a teaser can be fun. As far as a drop loop is concerned. That's what I use. When tying off the
swivel I find the two leaders almost always tangle. I' ve caught many cod on a double dropper loop above a 17oz jig, with both a fish on the dropper and on the jig and have never had any leader break on me. So I have confidence in the dropper loop.