My understanding is that the Hills. Ron and Russ Sr. took delivery of the Desilva wing unfinished. Ron and my grandfather finished the wing with a few minor design mods and the rest is history! It was the first outboard powered boat to lead The Parker 9 Hour Enduro!! all was well until the counter rotating engine broke a crank! this problem plagued OMC 115 xs power untill the advent of the flex flywheel! I am sure that Sam can elaborate.

Sam, didn't the Switzers have a stirrup of sorts where the driver used his foot to control the wing angle and didn't a driver or two become pretty injured due to this apparatus?