Was out for a nice sail in 10 knots of breeze and a fairly lumpy sea state and decided to trim and trim to get the best VMG I could upwind. Using my learnings about speed then point I was getting her to sail well at 47-43 TWA and really feeling in the groove. When I had her going well I turned on the track feature on my chartplotter and after a few minutes tacked over and got her in the same groove on starboard but was shocked to see the angle on the plotter. I took a photo and then measured it with a protractor to show 110 degrees actual from a tacking angle of 90 degrees. 5' keel I know is not as good as the deep keel but I think 10 degrees leeway is a lot.
Thoughts?
Thoughts?