Aging does wonders for DPG smokes. If you're getting ammonia the cigar needs a long nap. Ammonia is a natural byproduct (their waste) of the predominate natural bacteria. At some point their own waste is too strong for them to survive. A secondary bacteria becomes active and their diet is the ammonia. Thankingfully their waste has that sweet dried fruit favor that makes for a great smoke.
Let them rest and look for the sweet smell of raisins, prunes and dried cherries on the foot.
You'll be happy you let them snooze.