I blocked mine off to get on the plane faster to get me waterskiing!
But it made little difference & ended repropping, I think it would be better left open as it would have more weight up front to keep the bow down at take off!
The best advantage being blocked is you can keep to a speed with ease as when open you have to keep playing around with the throttle as she starts to take off as the water drains out! At rest she feels very light with out the extra weight of the water in the hull which I do not like
Member of the Ribeye supporters club!!!
Member of Bombard 380 Aerotec club
Member of SR4 club