We started from a trailhead near where the paved road meets the coast on the NW side of the mountain. From there we aimed for the Maunga Vai Heva saddle, then south to the summit. We circled the crater clockwise to find the high point to the south side of the crater. There are a lot of wrong, too high elevations published for this mountain. My GPS agreed with the 370 m found on a map I picked up on the island. Other published elevations over 400 m and over 1500' are wrong. Trip report to follow with more details.
"After the first glass, you see things as you wish they were. After the second, you see things as they are not. Finally, you see things as they really are, which is the most horrible thing in the world."
--Oscar Wilde on Absinthe