If a light tunnel boat has a tendancy to chuck ya out at hi speeds on a sudden shut down or loss of power would this be most likely caused by too much intake pressure, and or shoe being to much below the keel? what is a fast but safe shoe depth below the keel? his is a new boat to me, '17 Earl Smith tunnel (275#) i have not run this boat yet but i'm a little worried about the safty since i've herd that the guy that owned it before me went swimming a few times against his will.