I recently threw on a pair of 3 inch drop blocks on my 57. The ride quality has noticably declined. Now the shocks that are on it have probably been around since the 60s or 70s and needed to be replaced anyways, but would it provide a smoother ride if I went with a 3 inch shorter shock, or should I leave standard units in? A few years back I'd say screw it and roll the worn out ones, but these days I've got a bad back and I'm feeling every pebble I'm rolling over in the road. Opinions?