for me if you can maintain temp low and humidity stable at 50 % is good also better, you will arrive at at the crunch point( when stem do crak) a little bit faster and mold problem free, then when are ready to cure 60 % is better but easiest also to obtain in the jars. personally i start to hate some years ago fresh weed from cut to first week, because i feel it heavy and intoxicate me , body and mind ,so to live in peace i buy the smallest rvk and filter and all goes out side ....really much better