I took this last week of my 20 with a 115 2 stroke. Knots is in bottom left of GPS. Hope the link works. I think of planning as when the bow falls flat. That's what I gauge mine on anyway. Tim, is that how you determine when you are on plane too. What is the definition of when you achieve "on plane"
http://m.youtube.com/watch?v=9e-VQkXYayc