Hi Niko,
As has been addressed on the ki-info list, this movement exists in the ORE. So those that are familiar with that, shouldn't be too surprised with a change in foot pattern (if they choose to do so).
And Stan Haehl had a good take with this bit of advise:
Of course, since Minnesota Ki Society has recently gone public as an Eastern Ki Federation group, you should do whatever Shaner sensei suggests...
In Ki Society, I've found that there's always, "the-other-way" of doing things. The more you practice new movements, the easier it is to learn new movements.
Wait... what was the question?