Anything that comes in the mail gets at least a month's down time to acclimate. B&M purchases that I don't smoke at the B&M also go down for at least a month. That's usually enough time to get the RH down to where I like it. Additional rest really depends on what it is. A lot of NCs are blended, fermented and aged to be smoked now, without additional rest. Some of the cheaper cbid stuff is better after 6-12 months to round off some of the harsh edges. And of course many CCs are best after several years down.