Not really a commute, but since I have a Metrolink month pass, I can take the Amtrak to ride with a club up near the work end of my commute. My local clubs rides tend to be extreme on the hills sometimes, and I am a bit clydish. Rode from near the old closed Tustin Marine base to Rancho Santa Margarita. That was 20 miles and about 1500 ft of climbing with no real steep grades. From there I dropped from the group to rid the mostly downhill 17 mile to the San Juan Capistrano Amtrak.