Hickory is a wood when mentioned you will get a lot of different perspectives but hickory if cut & ruffed out hung on the wall @50% RH for 2 months should be good to go at least in my case ,I made a hunting hickory/sinew bow last year from stump to shooter in 2 months total with no issues , heat treating hickory seems to turn it into kinda a poor mans osage & if you talk to some of the better hickory bowers around here they will tell you about making faster bows then when using osage , I think heat treating helps with moister, but with meteculious sealing of the hickory and proper build I wouldn't hesitate to go hunting in the rain all though I'm not much of a rain day hunter any more, it's like any other bow wood to me if properly cared for & sealed it will make a great bow