I've had a LOT of issues with my nano clone too; I think a lot of the problems with it are just *because* it's so much smaller than a regular kayfun. The only way I've found to be able to use it and not scorch the wick is by using rayon. A rayon wick in a regular kayfun can last a week or more, but with the nano, even using rayon, it's only going to last 3-5 days before you start getting the burnt taste. But I think the spaced coil is by far the best way to do it for a nano, just because it prevents concentrating the heat so much.
And as I pointed out to the poster saying you're doing it "wrong," there's really no wrong, it's just what a user prefers, though a spaced coil does work better in a nano than a compressed one does -- at least in my experience -- but I do have to wonder, as he did, how you can tell the flavor is "muted" if you're vaping unflavored? There's no particular flavor there, so how is it "muted"?
Andria