The only thing I disagree with is that a chrysalled bow is more likely to break. Wood is stronger in tension so a collapsed belly puts less stress on the back. A hinged chrysal perhaps but not a chrysal with no apparent disruption to the drawn profile.
Pat, proably most of the bow failures actually happen at the belly before the back breaks. Once a bow has chrsaled it is weak there and can hinge and cause an instant failure at any time.