how do you descend, and how fast do you descend?
Calm confident descending is a requirement for preserving hard earned momentum for the inevitable next climb in the Hill Country.
The back roads are chip seal with tight off camber decreasing radius blind corners and eroded "low water crossings" at the bottom of many descents.
Getting it wrong can result in encountering an F-150 head on, flying off into a deep limestone ditch & barbed wire fence or stalling from lack of momentum on the exit to the next climb.
Here's how one should be positioned: On the drops, calm, relaxed, elbows bent and looking through the corner:
Ride your own pace.
-Bandera