It,s not that hard to understad.
Hull directly afflicts the ship structure, meaning you wnana destroyd it. Crew and sail is AP meaning ships with lots of sail loose more AP with shoots directed to the sails, but you prolly have to finnish of the crew aswell to get bellow 15 AP,
Quickshot is randomly shoot eeeeverywhere, but this mostly hit the hull.
Ships with more ap then 30 / 45 then you should at least hit the sail then crew once to drasticly lower the ap for the enemy ships so they cant do all theire dual / trippel shots at you ;)
 "Tough Growth"){kind=icon}
 "Caribbean Admiral"){kind=icon}