Those videos are so sketchy. One may have the right away but bombing down the road in a residential area means a car could pull out in front of you at any moment.
In that second video, the guy passing cars on the left with a double yellow and a rubble strip is just insane.
Piuma and Latigo are both nice. Yerba is also good, but my preference back when I lived there was Deer Creek off PCH and then left onto Yerba. Deer Creek is quieter and steeper.
Speaking of KOM’s. “ Patios” in Bogota, is one of the most coveted KOM’s in the world. It got broken this week. Cookie Gaimon tried his hand at it a while ago as well.