So I have noticed that it seems on the last broadside load of double shot it alot of times will randomly fire at higher elevation than aimed. even if you single shot to check aim that is usually ok but then the immediate remaining salvo shoots way higher than aimed.
also to this on some occasions broadside loadout does not automatically make the change from double shot/charge back to ball when it has been consumed it will just sit on the side at 0 until manually set to ball,grape,etc.