Thanks for all the response.
The group does have a few fast guys. Their ride is not as popular as it was the beginning of the season. Guys who are consistent and diligent about training continued to get stronger, so this particularly semi-weekly ride was initially advertised as a "no-drop steady pace" ride became just "steady pace". Guys who weren't so diligent in their training would get dropped, and then fewer and fewer guys were showing up for it. But if that's what is advertised, then that's fine. You'd expect that if you couldn't keep the pace you'd be dropped.