Definitely a good way to go. Those hills from Sepulveda into Westwood can be a bit of a pain if you're decked out for commuting and not just riding, though.tyo said:Left onto Montana, straight until the road turns right. Look for a big gate on your left - if this one is closed, go down a bit farther and use the next available gate.
Whichever gate you took, keep to your left until you get to a broken up parking lot - cut through it to Bonsall (left turn) then a sharp right onto Constitution - if you hit a small downhill here you're in the right place. Ride straight until the overpass, right before it hit a left and follow the concrete - it'll take you to Waterford, where you go straight till Montana.