The longer I ride, the more I see the changing nature of the groups I ride with.
Over a season the changes are subtle, but between seasons they can be dramatic.
Groups get faster, then slower, then faster again . . . or the reverse.
Your riding buddies may hang with the group or move on or move out entirely.
The group may welcome and encourage new riders one season and become ambivilent the next.
It is simultaneously refreshing and frustrating.
Change often prevents a group from becoming stale, but it can also erode a beautiful symmetry if you had a group that rode well together.
Conversely change can bring into being a better group than what you had