Sweating buds like that sounds like a good way to get mold if you're in a relatively high RH area... As for your RH% for curing anywhere between 55 - 65 is the "sweet zone" but anywhere above or below those thresholds you start running into the issue of too much moisture, which equates to mold, OR too low of moisture which equates to a loss in terpenes and probably cannabinoids as well. I personally like to sit at the 65% range due to the buds looking "stickier" as well as them retaining more smell and flavor. Other benefits include the obvious which is a slight increase in weight, and in my climate which is pretty dry, the ability to not have my weed dry out to dust in my grinder overnight. A downside I've noticed is the buds cure a hell of a lot slower than the usual 60-62%. No idea why, and I've never tested to see if they last longer due to the longer cure (never had any left).