Are these club group designations fairly standard? I added averages from what I've heard on the street. I hope I got these right. We have fairly hilly terrain here so folks are asked to perform an uphill time trial in order to know what group they should ride with.

A: relaxed pace; frequent regroups; waits for all riders. 15 mph avg
B: touring pace; regroups every 30-45 minutes; waits for all riders. 18 mph
C: brisk pace; pacelines likely; regroups every 30-60 minutes. 22 mph
D: aggressive pace; pacelines likely; slower riders may miss regroups. 26+ mph