I have talked to several dealers with different answers to the question of whether or not the Z119 and Z519 are the same boat outside of a few options. Some say it's the same and some say it's not. Can we get to the bottmom of this? Is the Z119 really the old Z19 hull? Obviously the deck and top cap are identical to the Z519, but is the running surface / hull different on the Z119 VS the Z519? I haven't been to a dealer that has both the Z519 and a Z119 to compare side to side.