Each level of rarity adds another "shadow passenger" to the boat, thus making it go faster. The rarity level does '''NOT''' overcap the amount of passengers you can have, and you will lose the benefit if you fill the shadow passengers slot with an actual passenger.
; Example;
: You have a Fantastic [[Sailing boat]], which can hold 5 total players, the commander and 4 passengers.
:: [_] = Empty Slot<br>:: [C] = Commander<br>:: [P] = Passenger <br>:: [S] = Shadow passenger<br>
:: [C][S][S][S][_]
: So, without any additional players on your boat, you already have got 3/4 out of the maximum speed boost you get from passengers.: If you pick up two passengers, the situation will look like this;
:: [C][P][P][S][S]
: This means that you've lost 1/3 of the bonus that the fantastic boat gives since it will not go over the cap on how much speed bonus a boat can get.
'''TO BE CONTINUED'''