On second thought, Neal and I were so far ahead of the riders on the official course that we were out there on our own without sag, for a while anyway. The Lake Logan rest stop, at the church wasn't open yet but the one on the BRP at 215 was. We don't need sag as we know the course and ride these roads all the time. We're pretty self sufficient. Other riders might feel more comfortable with some kind of on course sag vehicles nearby.