looking at the various builds ,between classes there is obvious large variance in the length /widths .I understand that the mast step position in relation to the centre of effort and lateral resistance needs to be calculated. or experimented with .But what benefit is a longer wheel base. For instance if I extended the length of a mini(forget about conforming to a class,) would that allow vastly larger sails,and how much would the mast step position need to be changed.As an example I looked at two potties side by side the other day one being the extended model it looked to me that the mast step positions were not much different in relation to the front wheel. Is there a recognized ratio between mast step and length as a starting point in a build. Just curious ,been thinking about extending/altering my mini(Windbob)