I, personally, feel, shooting too light of an arrow is still, and always will be, the main reason for limb failure of any kind.
I never shoot under 6 grains per lb of draw weight on my Compounds or less than 9 grains on my Recurves.
I currently shoot 7 grains per lb on my Bowman and Merlin bows and over 10 grains on my recurves.
Even IBO legal 5 grains per pound is asking for trouble, eventually!
JMO
Never had a limb fail in over 10 years of shooting and don't expect to shooting the "heavier" arrows!


Sag.