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Is this a "chrysal"?

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George Tsoukalas:
Chryals are not good. They eventually lead to failure. The bow will fold on itself. I've had worse but I hate to see them on one of my bows. Over time, how long is a good question as it  depends, they will cause failure. There are  2 causes for chrysalling. One, a limb is bending too much in one spot because the tiller is off. Chrysals are localized. Fix it as Pat B described. Two, the design is not proper. The bow may be too narrow for the weight wanted, etc.The bow may not be long enough for a rounded belly.  Chrysals are not localized but spread out over a larger area. There is no fix for these except to understand their cause and design appropriately next time. Jawge

FlintWalker:
The belly is flat.   
  The first few times I shot it, it took a lot of set. Somethink like 3" in the first 20 shots. It got so soft to draw I figured it was junk anyway and decided to play with it a little so I clamped it on a form and heated about 1.5" of reflex into it.
   I think what happened was that the wood cells that had collapsed during those first few shot were forced to stretch. Then when I added the reflex,  braced it, touched up the tiller, and eventually shot it, those wood cells that had suffered the most damage failed.
  I knew better than to try to force wood to bend one way after being trained to go another.
  Lesson learned.
On the brighter side, it shoots very good. Zero handshock, draws smooth and really spits a 540 grain arrow. It went from shooting 139 fps to 156fps at about 50# of draw. 
 It hasn't broke yet, but i'm gonna give it to a friend as a wall hanger before it does.
  If anybody here has a better idea as to what happened, i'd like to know. I'm here to learn.  SW
   

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FlintWalker:
After looking very close, in every place it has these frets the limb is a few thousandths thinner than the wood around it.  I think that came after I heat treated the belly and it was not uniform in hardness.  I noticed when I would drag the scraper the whole length of the limb it would bite in some places a little harder than others.  I guess those are called hinges.  SW

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George Tsoukalas:
A hinge is literally that. The limb actually looks like a hinge. Looks like you have some wash boards. Just some bumps from the scraper. Those may have caused the chrysals but not likely. Tough to tell without a full draw and/or a braced picture. Jawge

Marc St Louis:
I've had that happen on bows that were shot in then heat treated and reflexed. I imagine that some of the wood cells have collapsed when the bow is being shot in and the heat treating tears the cells apart as the bow is being reflexed.

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