Solo ride at lunch, using the normal loop with the extension to Poway Rd. I felt fast on the sections of Pomerado Rd but slow on Camino del Norte. This is a loop that can be easily ridden in under an hour's riding time.
Avg speed = 18.3 mph. Total mileage = 16.4 mi
Average heartrate = 149 bpm
Total elevation gain = 623'
http://www.mapmyride.com/routes/view/38068332