Eyebanger22 I dont believe one bag will help you handle any rougher water when trolling. Possibly a bag out each side but I dont believe it will be enough to justify it. I say this only because with you running a 9.9 kicker you would prolly want to stick with 30" bags max for trolling or your not going to get the speed you need out of that kicker. Again that's if your running two. I dont see one bag doing much for you, but if you decide to get some stop in the shop ill be happy to fix you up with Amish bags great price great quality.