LDT as in "local decent tobacconist".
Just been into the one place in Hull that still has a moderate selection of snuffs (though far from great). I bought a few odds and ends then suggested to the woman behind the counter that it might be rather nice if a wider range was carried, so that I didn't have to get the bulk of my snuff online. To my surprise she said she would see what the rep could offer the next time he was there. And better yet, she asked me what sort of snuffs I prefer.
There is hope!