Oh this is an interesting one!! I tend to be very loyal to the dance instructors I've had. Shortly before my hiatus I had an issue where I was the only student this pro had that was advanced Bronze. So I ended up learning with and teaching him for three lessons before I came to my senses and had to pick up another pro fro the studio "test".
Currently I'm with a pro that is very experienced on the teaching side, (10+years) so I think I have quite a bit more to learn before it becomes an issue of my loyalty biting off my nose to spite my education. :-)
Yes, definitely a month or two