Supra SR Owner's Manual page 75

Propeller
The research and design team at Skier's Choice has carefully
explored and tested many different propellers and pitch
angles for use on our boats. All tests indicate that the current
propeller installed on your model is the best for the variety of
boating performance required, whether skiing competitively
or for pleasure.
It is strongly recommended that your Supra dealer be notified
before changing the propeller. In general, changing to a lower
pitched propeller may increase acceleration, but will decrease
top speed. Changing to a higher pitched propeller may achieve
higher top speed with a light load, while acceleration and
power may decrease.
Avoid engine damage. Do not exceed the maximum RPM
as listed for your motor. Some props may allow the engine
to over rev, which can cause non-warrantable engine
damage.
© 2016 Skier's Choice, Inc.
Triple-Up Seating
Supra boats have "Triple-Up" seating. This unique type of
seating can be stored flat or flipped up for extra rear facing
seating. To use this seating, lift and pull the seat back into
the locked position. Be sure that the metal arms are locked
straight before applying pressure. To lay seat back down,
simply pull the lever section of the metal support arm to
release the lock mechanism.
Convertible Rear Seat
Some Supra models are equipped with a convertible rear seat.
The rear seat lifts from the back, hinges forward, and can be
used for a cockpit table. Lift the table forward and it becomes
a rear facing seat.
The convertible rear seat back does not lock into place. It is not
intended as support. Do not lean on or use as a brace in case
of sudden change in direction.
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© 2016 Skier's Choice, Inc.