[Fr. Frank]

If the bracket was made to fit a truly vertical transom without any change in transom angle from transom side to motor side, you may need transom wedges when you mount your motor, and you will certainly need to adjust mounting height. Transom Wedges are only about $50 or so and are made by T&H. I've even got an old set somewhere you can have cheap, cause I used to have an early Carolina skiff that had a 6 degree transom, and I wanted to be able to tuck the motor in more to plane quickly.

Stock transom angle on the OB Seafari is 14 degrees, and I heard somewhere that the Scepter/Tsunami was 15 degrees.

Remember that if you put on a straight/straight 90 bracket, the angle will remain the same from transom to engine mount with the bracket, but the bracket will be lower at the rear than at the front, necessitating mounting the motor higher on the bracket and/or bracket higher on the transom to compensate. The motor mount surface will still have the same angle as the transom. A straight/straight bracket will also then have a 14-15 degree rearward slope on the top surface of the bracket or swim platform if so equipped.