1. like someone said , not just about speed but group riding skills. See if any group/club offers a group riding skills ride. Our club does that and it gets good marks from attendees.
2. any clubs post their ride schedules with better descriptions and choices? Our club offers rides every day from A, A-B, B, B-C, C, social, night rides and mileages from 12- 100. Even the slower paced groups have long mileage rides.