Tony Gill, Sid Sturgis, Roger Sims, and Malcolm Kirkpatrick. Saw goat droppings above Kuliouou, and a little farther on, a goat. We walked out at the crest of the road above Makapuu at 6 p.m. I would recommend a couple of large trash bags and a sweatshirt, just in case you are benighted. We spent less than 1 hour at rest. It's a grind to do this in 1 day.
Water can be a problem for some.
Aside from Lulumahu valley at the start, there is no reliable source. It vwas gone by the time Fleming's mom picked us up 45 min later. If you trim the trails, please don't leave diagonal-cut stems in the path. I have a scar from a punji stick on the Puu Konakuanui-Olympus trail.