I had my upholstery guy just redo the late style seats . The early ones are liked by some better because the side bolsters are somewhat more pronounced. Only used the hard top a couple times, but there's a big difference. My 64 bug convertible has a padded top and headliner. There's nothing in the Tigers or the Falcon. Ya don't want your head close to a black top in the sun generally speaking. I thought the new foam and diaphragm was rather stiff as well. You can always make it higher by flipping down the bar under the seat for an extra inch but you can't make it lower. You certainly can't make it any softer once you stick in those later bottoms either.