18.1MPH around the Nicasio Valley loop today, a personal best since I've been measuring it, although there are a couple of places I'm feeling slow. It was hot today, and I went with two water bottles (one with two packets of Hammer Gel in it) rather than the CamelBak. That may have helped my speed, or it may have hindered, I need to practice drinking at speed, rather than coasting, from the water bottles, and I was thirsty on the return.