Thanks for the reminder. Garmins can have lots of data displayed, or a live updated map. The map can sometimes take 3 or 4 seconds to stop moving when the bike goes around a curve.

I'll sometimes take a much longer time looking at it, compared to checking the mph display on a regular bike computer. I need to be a lot more careful. At least I don't need to look down to switch from one screen display to the next, I just use the side buttons.