Hi nospam.

I view it in the same context as I would review an example such as:

I graduate high school and therefore I will not return to grade one to do it all over again in an endless cycle of learning the same material over and over again.

However, revisting something to refresh the mind and extrapolating that which is useful is key to maintaining.

So, in essence I agree that when one no longer progresses with their practice they are in a mire of repitition that serves little or no purpose other than to repeat and repeat again.

Maintenance in Kung Fu is not only with the mind however. If you stop working out, you will forget, or rather, your body will be unable to comply when called upon to perform. So, refreshment and maintenance of mental and physical knowledge is a necessity in something such as martial arts. But complete revisitation doesn't really serve you optimumly in practice and growth.

peace