This is a great page and without it I never would have found the trailhead. Just one thing that I noticed, after passing Lewiston Place the parking is on the left side after about 4 houses rather than the first house.
The actual length of the hike now is 6.6 miles since the trail was "improved" in the earlier part of 2013. Thanks to a local who shared that info and admitted that he also helped on the work effort. The trail was a bit more gradual than I thought it should be except for the last 500 feet of elevation gain.
Although the parking lot off Shadow Canyon Drive is small, there is plenty of street parking all around it. No need to worry about finding a space, even on busy weekends.