the paddle tail vibrations send soundwaves to would be predators... this attracts them to the plastic bait and the fish is fooled into biting it as it swims past it.
in non calm days when the water is working in the surf, the vibrations are negligible as the waves crash down, hnce me pointing you toward super flukes...
try to get both products.
try and mimic the colors of bait fish/ squid/ food in your area.
establish what sort of food has been around eg squid... throw some white/ silver/ translucent options.