Zwifts group workout feature: whats been the most frustrating experience for you in terms of uneven paces, riders sandbagging, or other issues that disrupt the overall dynamic of the ride? Is it the lack of clear communication, riders who dont follow the rules, or something else entirely that makes these workouts more of a chore than an enjoyable experience? What are some common pitfalls that group leaders or participants can avoid to make these workouts more productive and less frustrating? Are there any best practices that have been developed within the community to mitigate issues like uneven paces or riders who dont pull their weight, and if so, how effective have they been? What role do you think Zwift itself should play in regulating these workouts, and are there any features that could be added to the platform to improve the overall experience?