Here is a great gunning method that I used to get ultimate. You must have a board where there is a horizontal pathway below the bottom cannon. If you leave the puzzle immediately and without placing any arrows, your rating won’t be effected. Having a crate for the pieces to bump into on the bottom right helps with the top right cannon for you can use the third arrow to direct the pieces. If you don’t get one, just make do with what you have and improvise the upper right cannon. My pirate name is Piratejp on Hunter Ocean. Update 8-6-10: Three Rings has applied multiple updates after I uploaded this video. Hence, this method may not have the effect it once had.
What if you don’t have that board?