2005 Road King with passenger backrest, the pad is secured to the sissy bar with the stock "triangular" 3-hole plate, spacers & screws. The problem is that no matter how much you tighten the screws, the pad can still be moved around. Don't get me wrong, it is snug, but I can put my hand on it and move it, as the plate is flat and relies on a "compression" type of hold on it. Other than the Harley accessory plate that appears to have a better design, are there any other options, to keep the pad nice and tight?