It's funny that you, Southernmost posted this as I remember a trip a little while back from your home town Key West and lots of traffic and lots of bikes! I try to always wave, whether I'm the one or returning but on this day it was just about every couple seconds!:-\
God forgive you get a long run of a group of bikes. I would just hold my hand out like in the video! Sort of got annoying but it beats being in a cage i guess! Told my girlfriend that if she wants to continue tagging along then it is her responsibility as the designated waver!
Juice109