So I decided to move from a Fun Shape (7'4) to a short board/gun (7'4) style this spring. I say short board because I'm 6'4 200lbs. I figured a 7'4 gun would operate the same for me as your average sized guy riding a 6'5ish short board. HOWEVER i foolishly went with a pintail design rather than a squash tail and i'm only realizing this might be a problem after getting in the water over the last week. Am I hopelessly going to fail at riding this pin tail on chest high waves or am I just going though some adjustment period of moving from a thick bouy of a board to this thin gun? Thoughts? advice? insults?