The HUPC was a cigar I smoked 2-3 times per week, until its discontinuation was announced. Now, it is a rare treat and as I watch their progression as they age, I wish I would have put up twice as many boxes when the discontinuation was announced. Alas.
What you describe about your Don Alejandro was sadly all too typical for Cuban cigars, especially the larger format. I wonder if looking at the bunching at the foot would foretell how the cigar smokes. For example, I'm working through a 50 cab of RASS and while they all burn, many burn lopsided due to voids in the filler or the filler being bunched to be denser on one side versus the other. I can look at the end of the cigar and reliably guess how those cigars are going to perform. So far, the cab has been 60/40 bad construction to good.
I also wonder whether those DA are overfilled, which is somewhat common among Havanas.