You may want to try this. Reverse the WF line and fish with the running line (smaller diameter line for shooting). “Chuck & duck” cast and mend upstream. Use the hand twist method to keep a very slight tension on the line. When you flies are near the bottom the thinner line in your hand allows you feel the bottom or feel hits. Follow the line downstream with the tip of the rod and feed line until end of the drift. Strip in the line and “chuck and duck” again, or depending on the water, you can use the tension from the current to load your rod and flip it up and across stream.
As well as watching your line for movement, the smaller diameter line gives you the added sense of feel. Also the thinner line is less buoyant, and allows the rig to run deeper. Not pretty….but pretty effective. Good luck.