What are some effective strategies for navigating the Mayan ruins course on Zwift, particularly in terms of pacing and cadence, to maximize efficiency and minimize energy expenditure? Are there any specific sections of the course where its advantageous to conserve energy or push the pace, and how do you adjust your strategy based on the type of workout or ride youre doing? Additionally, are there any Zwift features or tools that can be leveraged to enhance the experience and provide additional challenges or rewards?