The poles are like the bumpers they use for the little kids in the gutters at the Bowling Alleys. I thought they were there to guide and help you in to the slip......LOL..........
I have twin engines too. But they are also I'O's that spin the same way so I get zero benefit in handling around the dock.
That coupled with the fact that my home dock is a fixed bulkhead that I tie up alongside to (which makes me real rusty) make for a sometimes interesting, if not somewhat entertaining, experience on the rare occassions that I have to back in to a slip.
The best is the guys standing on the dock with a cocktail in their hands commenting and giving directions about how I have two motors and should be able to handle the boat differently.
Things are not always as they appear.