Just an update.
I went visiting this trail over the weekend with four friends. We found all three waterfalls with only a few navigational issues (thanks to everyone for the excellent directions!). The conditions are very good right now, though there is a lot of poison oak on the hillsides. With the snow melt, all three waterfalls are flowing very heavily.
Here is a shot of the lower waterfall:

We found the easiest way to get down to be right dead center through the Indian Pits, finding a game trail at the base, angling sharply left, then going down to the creek at the tree line. We didn't have to scramble up the stream at all from this approach. I left a large thick stick standing at the place we went down to the creek, but that probably won't last long.
Here is the second (middle) waterfall (photo by
John:

At the top (upper) waterfall (photo by
Victor):

Victor also has a shot of us wrapping under the middle waterfall to start up the chute:

This is a great hike and not to be missed! Thanks to all who have documented this trek!