Thank you for that reference,
@meadow . I knew someone had continued working with the original Little Greenseed line, but my link to that effort (from several years ago) had expired. I was unaware of the release of Emerald Naked Seeded. I found it interesting that Holly Dumont was involved, I knew her casually on another forum (and through SSE) and had exchanged seed with her.
It appears that Emerald Naked Seeded was selected for many of the same traits I am seeking. However, based upon the photos & descriptions, they appear to have arrived at a slightly different result... and apparently still unstable. Everyone selling the seed appears to be charging a lot, for a relatively small amount of seed (Ken originally sent me almost 100 seeds).
IMO this parallel breeding project is still worthwhile - and who knows, we could end up with a better Northern-adapted cultivar. The results of this years 2nd generation grow out - if it shows improvement - should demonstrate whether my goals of a fully-stable variety are realistically attainable. If not... well, at least we'll get a lot of pumpkin seeds to eat.