Also, I might just be crazy but I always found that aging cigars in the boxes with other cigars is far better than allowing loose singles to sit around for a couple years.
I personally think some of the best NCs to age are Padrons, Tatuaje broadleaf and black label and Opus X.
I always found a sweet spot between 2-3 years. For me, NCs usually fall off after that.
Yes! Last year, I experienced a similar spell that lasted for about 2 months. Every cigar tasted acrid, no matter the strength or blend.
I switched from a punch or small cut to a bigger straight cut on the cigar. Seemed to put an end to it.
My only thought was that it was build up of tar or...