Thanks. Exactly what I had feared would happen. In my case it was paved roads with a lot of poor "patchwork" style repairs done that caused that bouncing effect. It didn't inspire confidence.
Good to know there's a more solid replacement if/when I have to. I'll concentrate on a mini summer shield, which is also something I've been meaning to do. I've seen a couple that people have made that looked quite decent. I took it around this weekend with no shield, and in the near 90 degree heat, it felt pretty good like that.
'79 Yamaha XS650