Earthspeedandfire,

You're very near the Laguna Niguel slope soaring Guild. I checked their web site, but haven't seen any activity on it since 1996.

here it is:

http://www.rcsoaring.com/lnssg.htm

Dave of DavesAircraftworks.com and John Roe hail from your area. I'm not sure if their club hill is still active.

For more basic info on slope soaring, here is a great that Greg Smith maintains:

www.slopeflyer.com