I will post more picts after that is done. It should be dry by then as the humidity in my mud room next to the stove is 25-25%
If your room has a humidity of 20 to 25 % (you made a typo I guess?), your wood will reach an equilibrium moisture content (EMC) of 4 to 5% which is
dangerously low for most woods (except maybe hickory)! Do NOT permanently store a project you're working on in that room. You can use that room for quick drying wood, but leave it at least a few days in a room with higher humidity (say 40-50%) afterwards to gain some moisture again.
Don't rely on your father inlaws moisture meter. They tend to get false readings since they need freshly exposed wood to work. Get an accurate scale and monitor the weight of the stave over the course of a few days. When it stops losing weight (=water) a few days in a row, the wood has reached EMC (of 4-5% which is too low). Then put it in for instance a living room with 40-50% humidity for another week or so. I'm guessing that bow blank, in its current state, will need at least two to three weeks near the wood stove to reach EMC, but monitoring the weight loss will tell you.
Are you sure that is black locust? It looks remarkably light colored. The grain could be black locust though, but I've never seen this wood so light. Did you remove the sapwood? Or could it be a different species of wood? Maybe the camera flash is playing tricks on me...