A couple of suggestions...

We could do Brandy's ride although what I would like to do instead is start down at the sports park at Harvard and Walnut in order to get some warmup before hitting Jamboree/Santiago Canyon. If you all are in for hills, what we could do is add the Lemon Heights climbs (Tracy and Nina can fill you in) and then do Santiago Canyon and Newport Coast etc. This route would probably be a good 60+ miles with 4000'+ of climbing. ie very hilly. Also we could did this somewhat in reverse... leave from Tustin/Irvine, go down to Newport and then come back up the Aliso Creek trail to El Toro to Santiago Canyon, finish the Canyon and have the Jamboree downhill to end the ride.

Lastly, consider doing Santiago Canyon both ways...

Another option is do a ride from Irvine to Belmont Shores. It's about 65 miles.

I have another route that Jess did for me that starts with a Skyline climb (from the other side) does NC and then goes up to Huntington Beach and back.

I'm open to other options as well. Just let me know.