Stability Curves

[MV Off-Axis]

I was wondering if anyone had the GZ curves for the V20. I just put a wake tower on my 1986 V20 since I do alot of wake boarding as well as Sailboat Regatta Management . I have not had her offshore yet since the tower went up but really have not noticed that much of a roll period change . The only thing I have noticed is she is a little heavier in the wind when on plane . Any Ideas ?