http://ridewithgps.com/routes/3599187 The steep bit starts right after you cross under the freeway. An alternate adds about a half mile but gets you to the same point over a longer, shallower grade. http://ridewithgps.com/routes/3599993 You may want to try it, or not. Just thought I would throw it out there.
Both segments start at the halfway SAG. The route sheet has riders go all the way down to Vista Sorrento then double back to the SAG. If you want to try the alternate, lust turn left into the SAG when you pass it, then continue on to the alternate route.