Their is no doubt about it adjustable trim tabs are the way to go! But look at it this way, the cost factor you will get back half your money if not satisfied since they fit many boats. Also we spend a lot more on fishing STUFF that may not workout. I have Bennett SLT 10" tabs and am satisfied with the fact that they take out the porpoise and gave me about 4 more knots in a 3' sea. Just that difference in the ride kept them off Craigs List.