Mag lips & Kwikfish questions

Been able to find info on kwikfish but not so much on the mag lips which is what I have.  I'm guessing these are fished the same way as kwikfish on a 3 way rig with a weight and let it drift with current?

So when there is no current, do you just slow troll to keep the lure moving under these conditions?  For those that have used them, how fast should you be moving for the right presentation and how long of a leader do you recommend using from swivel to lure and to the weight?