Whats the most effective way to pace yourself on long gravel rides, considering the varying terrain and surface conditions, without relying on traditional pacing strategies that are geared towards smooth roads and predictable gradients? Is it more about listening to your body and adjusting your effort on the fly, or can you still apply some sort of structured pacing plan, even if its just a rough estimate of your power output or heart rate zones? And how do you account for the added variables of gravel-specific factors like tire pressure, bike handling, and course conditions, which can greatly impact your overall speed and efficiency? Can anyone share some insights on how to balance the need for consistency and efficiency with the unpredictability of gravel riding, and what tools or techniques they use to stay on pace and avoid blowing up on long, grueling gravel rides?