Well heres my 2 cents I have over the years tried many different foils and variations and this year found the magic bullet i have tried trim tabs in the past some boats good some boats bad this foil is absolutely steller http://www.sesport.com/5_32.asp check it out you wont be disapointed In fact I was so impressed I called the guy that makes them in texas long story short I have put 2 on the rescue boat and the transformation is amazing
This is what I wrote in my report after installation
The initial idea was to get the boat out of water a little quicker and
on plane this in turn would cut down on some fuel. Well it certainly
does that and then some. The boat now tracks when at 3000 rpm. What I
mean by this is that in turning and at speed manoeuvrings the boat
handles with a much more positive bite in the water similar to driving
a go cart. This is definitely for the good. At 4000rpm a flat water
tasking speed, the effect is that much greater sort of a sensation of
driving on a rail? I would urge all Captains and A/C's to become
familiar with this and then to pass it on to your crews everybody
should get a feel for how the boat reacts now. A 1/4 turn at 4000rpms
brings the boat around very quickly "Secure/Hanging On. Coming around
180 degrees see's very little power loss through the turn now.
Yes we have trim tabs on the boat they come nowhere close to the performance of these foils
By the way I run a 16.25 foot boat with a 50 4 stroke and it works very well hope this helps
Okay 5 cents
Peter