We stayed at the South Lava Trailhead and nearly had the place to ourselves. In June we found it too dusty and too rocky for group rides with young children; is the northern part of the area better riding?
I resisted lubricating the L brackets for the first two years I owned my equalizer as I didn't want to deal with the mess, and was constantly fighting the L brackets walking along the frame. Last year I lubed up the L brackets and they did not walk along the frame at all, in addition to a much quieter hitch. With the Equalizer hitch, if you are redistributing a lot of tongue weight you can end up with too much friction and lubing up the L brackets has made the hitch much easier to live with, even if there is a little bit of a mess; it doesn't take very much grease, just a thin film.