hi i have just had my outboard serviced and a set of these fins fitted
it's 25 hp mariner controlled by a tiller
we used the boat it got on the plane great and i was able to slow right down and stay on the plane but when i was doing top speed it was really difficult to steer
the top speed for me is 35 kph anything over 25 kph the tiller didn't want to turn
it made the boat unresponsive and hard to drive
i like using a tiller but not with the new fins on
i am considering taking them back off
i would be interested in other peoples experience with them
just wish i had asked before