We have used shallot bags which is like a fine onion bag with frozen minnows. Put a rock in it and tie it off. I don't think it helps a lot. Not like it's automatic. Not worth the hassle. I understand the sediment concept. I like to bounce off the bottom at times thinking just that, stir up the bottom and get some attention. I have heard of the perch call. The guy I knew called it a perch bong. Never bought the concept. I agree with west basin find them and learn to feel the bite.