Are you fishing at the best time of day? From just after sunset to a few hrs after dark. Or just the opposite in the morning.
When using your jigs and twister tails (which is an excellent choice) they need to bounce along the bottom with the current. The bite will vary from a slight little tap to a hard hit like a smallmouth. You may not even feel the pick up of the lure on some strikes. you'll usually get one or two taps to set the hook. They will also take this offering after the end of the bottom bouncing drift when you start to retrieve the lure. Do this very slowly, almost letting it hang in the current with an occasional jigging action.
For me the fun of this type of walleye fishing is all about feeling the strike. Tap, tap, Wham. It's a blast. The bad news is they don't have much fight unless they are really big or the current is swift. It's like dragging in a small boot.
The good news is They Sure Taste Good>>>!!!
If your not occasionally feeling the bottom with your jig presentation, you need to make adjustments.
It's been my experience that if I'm not loosing a few jigs while walleye fishing I'm not catching many either. Of course that may just be the rocky conditions of my Eastern River.