I have two tupperdors at 65 rh now, but I started at 72 rh. At that rh, cigars were wet, kept going out, and had muted to no flavors.
Transitioned to 69 rh. First cigar I had at that rh was an af short story. Wow, epiphany moment. Didn't know cigars could taste so good. Still had burn issues, specially with cc's.
About three months ago, transitioned to 65 rh. Good burn, flavors and overall good experience. Cc's smoke fine, but if I have the chance, I will dry box them before smoking, as they perform better drier.