Is running a 2 stroke outboard continuosly at WOT harmful, rather than backing off the throttle and running more gently once the boat is planing? This may sound like a dumb question but I would appreciate some opinions. I have a 50 horse '89 Force and an old 5.5hp Evinrude and dont want to wear them out if running them a little easier will make them last longer. Just trying to increase my outboard education. Thanks.