The Spitfires are one-design, and have a long carbon tiller extension - never been a problem for me. They are so light they are easy to use. I also have a Hot Stick telescopic carbon tiller extension on my Nacra - now that IS heavy and comes undone at all the wrong moments. A friend has the same on his Nacra - he's used it with no problems, until he lost it and had to use a lightweight fixed one - which he loved!