A couple of considerations about evening dining at Palo - -
The view is usually better when in port because you can look out and see the lights of the city. <I>Most</I> of the time at sea, it will just be dark outside with nothing to look at. Also, since it will be the latter part of hurricane season, if the seas happen to be a bit rough, that can really put a damper on the dining experience.
These are the reasons <I>I</I> personally would choose an in-port evening for Palo if possible.