I know its a bit late, but...
I've recently been branching out with my flavour choices, here's a few of the less common ones I've sampled;
Quite bright, more like a biscuit than a cookie. A nice mix between a shortbread and a digestive, a bit buttery. If I had to compare it to a more well know flavour, it'd be Inaweras Biscuit, but that's not to say it's the same. It's pretty much the same strength, 2-3% as a single flavour provides a fairly strong flavour. I can't taste any AP, which is always a plus to me.
I'd probably give it a 3.5 out of 5.
Dulce De Leche:
Creamy, caramel-like, vanilla dessert. This one's a bit lighter on the caramel than others, with a bit more vanilla? I think.. I'm not the biggest fan, so don't have much to say...
It's usable, but imo doesn't offer anything other flavours do better.
Vanilla cake and buttery cookie, is what I'm getting at 5%, I think it could be stronger, and go up to ~7%. Overall it a really nice flavour, just not a cookie... It reminds me a bit of a vanilla cupcake.
Another 3.5 out of 5.
Tart Au Citron:
Amazing flavour! Rich creamy lemon curd, with a buttery base, and a hint of coconut. Better than any dinner ladies mix I've tried, imo better than the original dinner ladies.
It's got the same profile as Mr Meringue.
At 20%, it's sweet and rich, can be a shake and vape but really shines after a few days-1 week.
This one gets full marks, the BEST single flavour I've ever tried!