I've purchased a new 22' SX w/ swingback from Ingman Marine in SWF. The intention is to use the boat in shallow water around beaches for socializing. I'd like to hold the boat in place with a power pole and have a couple questions. This model has 30" to 36" of open deck on the back for a swim platform or fishing. My questions are, will it take 2 poles to keep it from swinging, and if so, how far away should they be mounted from the 150 Yamaha. The starboard pole would have to be mounted between ladder and motor. Thanks for any advice