I have a Sailfish 176. The hull shape is a V. The transom has three steps. From the outside in they are 12", 12 then the last joins is at the bottom and joins with the other side. The motor size is 100HP (Suzuki)<br />Are the trim tab measurements the side to side length then the width (how much it extends from the transom)?<br /><br />If so will your Part # ST1290-60 which is advertized at 12" - 9" fit the boat?