hey, buckb, welcome aboard.
i have the unraveling problem with some connecticut shade wrappers -- especially those that are more tan than golden in color. i've kept some at 67% and others at 70-72%, but it doesn't seem to matter. they're just thin, delicate wrappers and i have bad luck with some of them, no matter how gently i treat them, how humidified they are, etc.
one thing i will say is that this has happened to me with thin CTSH wrappers both after letting a stick rest for 3-4 mos and also right after purchasing it from a local tobacconist. again, it's never a problem with other wraps, just the tannish, thin CTSH variety.