Which SG KB are you referring? Plain, Special or Original? SG Kendal Brown Original is my desert island snuff. You’ll never find me without a FlickBOX of it in my pocket. Like you i prefer tobacco-centric snuffs.
Black Rappee is much coarser than Kendal Brown, it’s almost as coarse as Los snus. It’s difficult to keep in those nose so it tends to be a bit messy so this one tends to be used at home or when outdoors. However the scent is wonderful. Full of barnyard scents that linger for a long time.
I’m not familiar with Scotch Black it’ll be on a future order of mine.
Other plain tobaccos to consider:
Viking Brown as previously mentioned, but also try Viking Dark it has a similar grind and moisture to KBbut the scents is something all it’s own. Dark in particular is also a daily snuff or me. There’s a nice warm bakery like scent to it and boy does it pack the vitamin N.
Gawith and Hoggarth Kendal Brown - Similar to SG KB offering but certainly different in admirable ways.
SG Kendal Brown Special and Original - Original has all the underlying tobacco qualities of a Kendal but adds in a citrus (bergamot and orange) that feels fresh in the nose. Special has less smoke, and little to none of the citrus of Original but boasts a subtle complexity of natural scents that I’ve never been able to identify, i want to say there is a very very slight bit of a floral quality to it, but think more “green bush with tiny flowers” where you smell as much of the bark and foliage as you do the blooms.