Really no need to shuffle locations cause as you said "15 minutes of "detective" work" and they would know the new location right away by booking an appointment. Misty's stayed in the same location for soooooo many years (only example i got, lol). The only real reason to move a location is if the building management/ownership forces you to do so because of neighbour complaints and concerns. If agencies keep their nose clean, no drugs, no underage girls, treat the girls right and dont have a revolving door there is no reason to ever have to worry IMHO.