I did Olallie today and the route I took was only about 6.4 miles. I went up Cedar Butte trail the steep (shorter) way; Southside to Olallie; up Olallie to the first view point; took the switchback shortcuts on the way down (some of the bikers like to live dangerously); then took Southside back, where I usually take Olallie down to PTC, and steep way down Cedar Butte trail.
Those details sure cut the mileage.
Southside is looking decent these days, dry, not terribly brushy:
The track:
