Painfully true. Prosciutto san Danielle is also acceptable, and there are some fine soppressatas outside of Queens. But a lesser prosciutto will have the aftertaste of crankcase oil and the consistency of an old fan belt. And I stay away from Boars Head meats because of their resemblance to cardboard.
There are all kinds of provolones to put on a hero: domestic, imported, aged, fresh. The aged Italian provolone called piccante is a fabulous cheese, but it is so sharp it should be used sparingly, almost as a condiment. In contrast, some domestic provolones are so dull and drab-tasting they add nothing to a sandwich. The best provolones I've had on sandwiches are made by the Auricchio family in Italy and Wisconsin.
The Auricchio provolone from Wisconsin is good, but the Auricchio from Italy is exceptional. Auricchios main competition in Italy went down the tubes twenty years ago when the 96-year old patriarch who ran it died, and his playboy grandsons ran the business into the ground. Stick with the imported provolone, but use it sparingly as suggested.
Fresh basil, like the leaves Mary Lou Capezza sometimes uses at Corona Heights, can make a sandwich into a work of art. Roasted peppers can also make a fine addition to a hero, but too often they come from a jar or a can, and, furthermore, wet down the sandwich so much they make it soggy. But I will say that hot cherry peppers or pepperoncini, if used sparingly on top of a hero, are a valuable addition, lending some spice and heat to the whole affair.
Fresh basil complements everything you put it on. For roasted peppers, always make your own. Its not that difficult, and once made they will keep for a long time when refrigerated. Its a tie between pepperoncini and hot cherry peppers, but keep as much of the vinegar out as you can. It messes with the general taste of the sandwich.
The Sandwich Kings' Italian combination is superb, but I think roast beef, turkey, American cheese and mayonnaise are heretical on a hero. Shredded lettuce, too, and in this I am not alone.
Shredded lettuce? Turkey? Roast beef? American cheese?!! Infamia!