Depends on the time of year/day and type of bass. Prespawn i use a twin tail plastic trailer for largemouth looking to get some energy for the bedding season to come... bigger meal bigger fish. Post-spawn i go without to be able to burn the bait more easily. Smallmouth I generally dont use one because of the tenancy to short strike unless it is at night which I always use one in pork to slow the bait and add scent. Varying the shape seems very important at different times of year to get the right profile/fall/action. Just vary shapes and colors until you find what the fish want.