Brent, I would say that Sal's EL is a good selection, if your looking for cold hardiness, and sweetness.
We are in one of Connecticut's cold areas, zone 5, and Sal's EL was cold tested about 30 miles north of us in another cold part of Connecticut, by Paul Tracesky in the 90's.
We have been told that after testing, Paul only kept one fig from his test plot, and that was Sal's EL.
It's considered the gold standard for our area. As to it being a good selection for marketing I don't know. I guess it will depend on how much flavor it has prior to being tree ripe. We put one in the ground last fall. So, our tree has not ripened this year.
We find it to be a very healthy, strong grower, with dark green leaves. We also have several in pots, of varying sizes.
I would think a selection for market would need to be cold hardy, and not need winter protection. Become tasty before it becomes tree ripe, to avoid becoming mush before you can get them to your customers. Also, it should produce a lot of fruit without the taste, sweetness, and flavor being diluted. I would think having large fruit would also help.
I noticed in your list you did not have Marseilles Black VS. If I were to attempt growing figs for a market, I would think about planting that one.
Mother tree has taken cold down to minus 18 degrees Fahrenheit, and survived.
It has been reported producing as many as 200 fruits on a three year old tree. and is easy to grow.
The only draw back I can see with it, is it might be to small for the consumer. But, because it is so early the consumer may not care about size that early in the season.
You may want to consider contacting Bass in Pennsylvania, Herman2, and Gorgi. They all have tested many figs in this area of the country.
Hope that helps.
Bob