You may want to try this one
http://www.bobsmachine.com/lift2.shtml#STABILIZER
Those extra rudders on this model really helps you carve up the water and unlike the Doel Fin I had used in the past, this one did stop the wondering at slow speeds as it says it will. The Doel Fin I had also flexed some and these don't.
Nice price point on them (same cost as many of the plastic versions) and it should return your investment money in lower engine RPM running while still running on a plane, which equals less fuel burn. Just call first to make sure they have one that will make and year lower unit.
Tight Lines!
Dave