How do you train Cannons by yourself?

[Lady Violet]

When I go out on my ship myself I pass by the ship I want to shoot, turn her sideways and park it. Then I start shooting out at the ship and make it come towards me. This lets me get head on shots which are easier than hitting a moving ship that likes to turn turn turn. You can either take out the sails to make it move slower or go for the side of the boat towards the middle till it catches on fire, then hit the fire for maximum damage. It gives you less damage and more time on the water if done right. See photo for examples ..... ITs hard to see but I got over 100 rep points in this 1 ship .....
Of course the bigger the ship the more rep points so sail around Padres and Kingshead.