If I were you, I would select "Neither". My intention was to make the "Neither" category a catch-all for those who don't strongly identify with either the left

If I were you, I would select "Neither". My intention was to make the "Neither" category a catch-all for those who don't strongly identify with either the left or the right. However, as other commentators have noted this isn't obvious, and I'm going to rework the signup page to make it easier to choose a category.