I smoked more Cohiba during last two years, then before in my life, and i had been smoking since 1984 - Cohiba Robustos, along with Siglo VI are the most inconsistent cigars that I had smoked, although 2018-19s were amazing, ONLY from El Laguito - Cohiba Factory. Esplendidos is the way to go, again from EL LAGUITO.
Maybe your disappointments comes from smoking different production factories? Just a thought?