UPDATE: Sorry for lack of replies. I've had a catastrohpic computer breakdown.
Answers to some of the comments.
1. Speed, dunno. Fast enough. My speedo isn't calibrated. About 40-50mph.
2. No, I don't use a throttle lock, just get up and back down. It's very stable right down to 20mph or so.
3. The Guzzi is stable is a straight line, the engine orientation makes no difference.
4. Those aren't winter trees. This photo was taken by Ben last Thursday evening.
G