Ok I have measured my transome. My boat is a v bottom. I got 19. But my question is I am putting a kicker on it and that part of transome where I will put it measured 17. So should I go with long or short shaft. Kicker will be used to get into lakes with how limit. Kicker is 9.9 or lower. I am still shopping for one. But trying to figure this part of it out. Thank you