The test I have to decide whether or not something should have it's own topic is whether or not the subject is so cluttering another topic that both of those topics would benefit by them being split up. That is not the case for Winch discussions.
Many incorrectly think that if you create a topic, it will generate more traffic. However, that is not the case. In fact, the opposite is true. When you separate out a topic and put it into it's section that has very little traffic, you've just reduced the number of eyes that will be exposed to those threads.
On top of that, a winch topic would overlap both the Wakeboarding and Wakeskating topics, so it's not really a separate topic.