Meditative Workings on Power Dates

[Blitzkreig [TG]]

I don't know if this is a retarded question or not, but how much of a difference would it make if something minor, yet still considered a working, such as the AOP or Returning Curses was started on a date like an Esbat, as opposed to other dates?

For example, this upcoming September 1st is an Esbat date with a Moon in Pisces. Would it make sense to not do the AOP the day before, thereby "breaking the working" then restarting it on Sept 1st? What about any practices similar to this? I am not referring to 40 day workings, but moreso things that are regular practices, such as chakra spinning regimens, RC, AOP, etc, which may be technically considered workings. Thanks.