Fianly got the smart tabs on the boat and tried it out yesterday, man what a differnece, I have a 79' 18.6 gulfstream with an omc 800, no power trim, It was the worst, bow rise was way to much, rough riding in chop, chine walking like crazy and the porposing was soo bad, I put on smart tabs new version, the plastic ones, 80 lb, there is hardly any bowrise, no porposeing, just glides over wakes and very little chine walking. I never liked rough water because of getting beat up but now it makes my boat ride like it never did before. Nautcus has done a great job!!! thank you!!!!