We have not.
While we are avid users on the trail, even some of us are involved with frequent use/nets/clubs, the majority enjoy ham for the clear long distance capable comms, because CB just isn't.
I used to be heavily involved with Los Angeles Disaster Communications Service, with regular check-ins, but the lovely people in charge of that org killed any sense of purpose I ever thought it held. Later taking part in a struggling local emergency group, I just lost interest in the whole idea.
Simplex comms from here on out for me unless forced into using a repeater.