My only comment is now void
It would have been the podcasts running time. Very rarely do I have the time to listen to the entire podcast from start to finish. Its not the podcast length content wise - there is certainly enough discussed, purely just the practical side.
But now with the enhanced AAC version there are no worries. There are defined chapters so I can stop the podcast after a particular discussion has ended
In summary, I guess my comment is a 'keep doing'
... keep doing those chapter markers and keeping the balance between too many chapters and too few