My nose can be a rather blunt instrument at times (alot actually, compared to many of the super sensitive noses around bn) but I've always thought the flankers were too close to the original. In other words -- PM: Original Vibe = 90%, Malt Vibe = 10%; PH: same proportion; Pure Chili, same. Whereas, I think I'd like the opposite mix percentages, 20/80, hell maybe even 50/50, I dunno.
I've sprayed Original, PC, PM, PH, & Taste all side-by-side on coffee filters and on skin... and yes I can tell they are different. But those differences are so subtle to me and rather non-existent during a normal wearing. I typically spray to the chest under t-shirt and cotton oxford. Sure, I get a malt or tobacco (etc) waft now and again but what I'm saying is that the general vibe is the same to me regardless which one I wear.
So, when Leather was rolled out the early reviews told me 'same-ole-same-ole' and I've not thought twice about it since. Perhaps others have had or or having a similar experience? Plus, the hokey idea of leather straps diffusing their magic in concentration
... I'd have more respect for a statement such as "through a proprietary blend of certain woods and animalic scents molecules in our labs, we've been able to replicate a unique leather note" or similar.