With the flatter spin, I didn't lose any thing going deeper. If anything, I can get better speed when I heat it up and keep attached airflow better when I drive off with it. On the last day of the GT, it was pretty deep spin sailing. We beat ALL the F18's including the ones that started the Dash one hour ahead of us while being able to drive about 10 degrees deeper with better speed. Likely this was due to the new main as well with the fatter head. I left my mast settings the same as what I was running with the E/P so far. Being heavier I run only about 1 1/4" spreader rake with about 600-700 pounds of tension and my mast rake measurement about an inch above the halfway point on my transom. I think we did stand the rig up one or two holes on the forestay for the last day in anticipation of the light air (6-10 knots).