Check the deadrise.....V21 = 20 degrees, not 19. I believe the V20's are the same. "Wet anything over 1ft" Balogna! Getting wet has more to do with wind that seas but obviously is derived from the combination of the two.
http://www.wellcraftv20.com/gallery/...5_V21_Steplift
How many 20 - 21 footers have a 20 degree deadrise at the tranny? Not many that I'm aware.