I tried this on my Sonic 260 Prowler to stop excessive porpoise at cruise speed in flat water. Worked ok but still needed tab and drive tucked. But I blew my upper and am installing a new drive. I will not be installing the tail on the new drive. Only had it a little more than a month. Polished finish. I did drill a hole for my drive shower. But it mounts on the bottom so will be covered or if you have a shower hole is already there. $350 shipped. Email [email protected]