most of the mistakes I see are from guys just learning or with less experience,,,, and the bows I see now seem consistently well made and some amazing,, if you want to throw your bow away because it got a chrysal then that would be your bow and your decision of course,, patching something severe is questionable for sure( if not impossible),, fretting a bow to the point of failure is something that usually happens when first learning,, or when experimenting with pushing the design to the limit,, not a normal occurrence with an experienced bow maker,, I will stand by my statement that a minor fret is not the death of a bow,,this I know from experience, I have put rawhide on the belly of a bow,, and it did not increase draw weight,, but did hide the rasp marks as intended,, I feel like the quality of bow making has increased since I started 20 years ago,, dont get me wrong, there were great bows and bow makers back then,, I think with the sharing of knowledge , there are more great bows and bow makers now