I just got off of the phone with a friend who spends a bit of time in Naples.  He knew that there had been some discussion of the Neapolitans such as Sabino, Scafora and Piccollo (sp?) and he asked of them to some well known related artisans (though not competitors) and knowledgeable folk from Noveporte.  What he found out was:

Sabino-  Years ago he was one of the better tailors in Naples.  Today he is no longer considered a bespoke tailor, rather somebody who has a small factory and is halfway between RTW and bespoke.  Call it a glorified made to measure.  He did not hear any positive things about this "artisan".

Piccollo-  Terrible.  A third class shirtmaker who is a total waste of time and money.  The regular shirtmaker who works with Sabino is somewhere int he second class, but he does not like to travel, so they got somebody to go along.  Stay away was the recommendation.

Scafora-  Good shoemaker.  One of the two best in Naples, but that is not saying a ton.  Styles tend to be a little exuberent, but the make is good and he is honest and flexible.  The class of the group by far.

My suggestion based on our conversation would be to only search out Scafora, but that other shoemakers from other areas can be a bit better.

I hope that this was of interest.