It seems that enlarging on AZO and contact printing on AZO will require different types of negatives - i.e. for the former less dense (am I assuming correctly?). If this is indeed the case then a comparison of print quality between, for example, an enlargement onto 8x10 AZO and an AZO contact print of an 8x10 negative should result in one being superior to the other, at least in terms of tonal values, shadows, highlight separation etc. I find it unlikely that we shall find equivalence in quality between the two BUT I eagerly await the results.