I know it was set on MPH, and I never mentioned knots, but a lot of others sure did. As for the accuracy of the speed, I guess that's up in the air (lol) at this time. One thing is certain though. I zoomed past a lot of larger sailboats, probably a couple hundred that day, and made the trip down the bay faster than I, personally, have ever traveled on a monohull boat.
This debate could go on forever, but not for me. I'm headed out this morning for sunny climes and beautiful waters 1,150 miles south of Havre de Grace, MD - the lower, Florida Keys.
All the best,