in my experience, it is both easier and tastier to smoke tobacco at the right humidity. what that exact humidity is up to you to find. i have found that if the tobacco is still pliable and if squeezed will bounce back while not breaking, it's good. if it's too moist, then i have found it harder to keep lit, produced more steam (bit, and gurgles), and some of the flavors are muted (very similar to an over-humdified cigar lacking flavor).
just my experiences, and i know there are others who will disagree as we've had this discussion before.
now, i'm off to dry out some McC #2015.