Hi all i have been following the recent thread on the scaled up version of this hull from what i read the .21 version measure's 36'' x 16'' beam which seams to be a huge hull for a .21 outboard . I have a stock .21 O.S XM running 40% Redmax fuel .Has any one ever GPS 'ed speed of the .21 stock set-up on the kneeler? May have to consider this for a future project. Regards Andris Golts.