Given the speed issues of the current site and the probability of a lower number of posts under these topics, I'd suggest to combine into one catagory. If you look at the idividual boat catagories they get very little useage. I would also include all towables and knee boards.
Topic: Water Sports (wake boarding, water skiing, towables, knee boards, etc)
JMHO, just an idea.
Topic: Water Sports (wake boarding, water skiing, towables, knee boards, etc)
JMHO, just an idea.