All replies were most helpful; thanks much.
I think it may take the edge off unavoidable bumps. I stay on pavement 99.9% of the time, but there are times when chewed-up pavement is hit, either because I was daydreaming or because of avoiding cars and whatnot. #%$** speed bumps are popular around here; some are smooth enough but others are brutal. The lips or "curblets" when entering driveways are my biggest pet peeve. Some of those are really high. They are curbs for all intents and purposes.
Thanks again.