I've driven Ortega HWY numerous times - heck, I live about 5 minutes from Ortega & Antonio! But after Elsinore I never had reason to venture further inland and would usually end up on the 15 headed for San Diego, or if it was just for a fun drive I'd turn around and head back home.

I'll have to check a map but your description beyond that sounds much, much more enjoyable than just cruise controlling the 10 out to Palm Springs!