Driving on the freeway around 70 mph, I hit a substantial expansion joint over a bridge, enough for the rear shock to bottom out.
A bit later I noticed the warning on the dash: "GET SERVICE CODE H73"
Since the bike ran normally, I didn't worry about it. The code disappeared after stopping the bike at my destination and then restarting it.
Took it into Scuderia in San Francisco, who called Adam, who said it indicated a problem with the memory stick. I took the stick out and reseated it, just for good measure.
I love issues that are non-issues!