Never stop to aim, always keep that sail up and get a way sloop. And get a huge crew and keep ur distance from the ship ur attacking and max ur TAKE COVER thing, it blocks so much spicy damage its insane!

I almost always have my masterwork broadsword and my foul bane blunderbuss a musket for range but mine is weak and then i always take a dagger - seven seas - or my cool throwing knives that heal me a little with each hit. Every now and then i use my lost sword just for fun.
This is my standard pvp setup