I feel there are many benefits to this plan. It doesn't change the teaching order or the list. It simply splits the pie into more pieces, but you still get the whole pie. It also allows a repeat class without any hassle. It also provides a stopping point for the individual that is satisfied with a program that only requires ten to twenty weeks to learn.
Some people simply enjoy the lessons and never want to move any higher.
It's predictable when you look at what's happening when you reach week twenty. Unless you can convince them to stay after 10 o'clock, you're going to have to go to another night or send them to a club that dances their level. At the end of one year it's possible that starting with only four couples initially, you can have one hundred and twenty-eight couples using ten weeks as the approach for lessons. To some extent I must agree. But may I suggest that where possible, callers get together and share the workload by combining classes.