My gal is working late tonight, so I am bored. Took the time to explore this some more.
1. Wessex Campaign Dark Flake - January 2017
vs
2. Wessex Campaign Dark Flake - September 2018
And yes, I broke out my cobs for this comparison!
Conclusion (keeping in mind I suck at tobacco reviews): Pretty much the same blends. HOWEVER, the 2018 tin did have a much more noticeable Perique bite at first light. My nose tingled and I definitely noticed Perique. But after a full bowl side to side, by the last third of the bowl, they pretty much tasted the same. I did notice the Burley in both. Not significantly different between the two. Also, the flakes look similar. The 2017 is on the left and just slightly darker, but it has been in a jar for 1.5 years so who knows.
In summary: Yep, Perique is in both blends. Much more prominent in the current 2018 blend. I am reminded why I love this tobacco so much! I never thought of it as a "VaPer", but going forward, that is what my mind will think.