I''m trying to determine what size slip is best for my boat. The LOA is 34''5" and the Beam is about 11''. The slips I have to choose from have fingers on both sides. I can get a 34 foot slip which has a width of 13 feet. A 36 foot slip with a width of 14 feet, or a 38 foot slip with a width of 15 feet. I like the idea of a tight fit, but the 34 foot slip will only give me a foot off each beam. Is that too tight? Should I go bigger? How much? Any thoughts or suggestions would be much appreciated. Thanks.