Just so moderators know: there's a good reason I left out the shop's name & location. They used to have a big remaining stock of Nat Shermans. I told one person (a local), and days later, when I returned to buy a bunch, they were all sold out. I've also recently missed several items whose sellers sold them but neglected to remove the ads (those ads are still up, incidentally). So I'm slightly wary; if there's something I should buy, I'd really like to hope I can get first crack at it this time.
However, I trust the posters here quite a bit. I'm going to go purchase one tin, and then I'll say which shop, where. Do they sell by phone/mail? I don't really know.
Erinmore reviews hint at something akin to the super-super-super-sugary cased stuff. Is it really not that intense? A little sweetness is wonderful. Too much always ends up gurgling, no matter what pipe I use (I tend to puff slightly fast, and I smoke outdoors in a windy city).