Wierdest thing happened to a bow I have been finishing up.
To start with, about 8 months ago, I straighted out the blank by steaming the handle for an osage bow. Got the tips lining up. I did not have the handle shaped, just blocky. Rawhided the limbs. So, over the last 8 months, I tillered, and recently shaped the handle. Its been stored in probably too dry conditions. Ok, I have shot this bow maybe 200-300 times, and took it to the Balt trad classic, (unfinished). Shot a few rounds. It was misty, typicaly may rainy weather.
Ok, so the last two weeks, I put some timber rattler skins on and tips over the rawhide with TBB3. I noticed while the skins were drying the tips did not line up anymore. Just like all the sudden. No big deal, because strung lined up fine. Ok, so I put several coats of spar on it, and noticed a lateral crack in the handle running down to the fade.
You can barely see it. Not big enough to even get super glue in, and its already sealed.
All I can figure is the high humidity of the time I shot it, it warped, and put a slight crack.
I can't imagine skinning did that.
I am not sure there is much I can do about it, other than shoot it. It doesn't appear to weaken it.