BC, I am no expert but I use fluorocarbon line on my spinning rods. For wacky worms and flukes I use a light weight swivel about 18" above the hook. The leader is the same line I have spooled on the reel. This eliminates line twist and the weight of the swivel doesn't interfere. I use the Palomar knot only. Again, I am no expert but this works for me. I'm sure others have additional solutions.
Mike