I ask this after an incident tonight. I normally practice with Cartel Triples and then a week before an outdoor tournament change over to my match arrows which are 600 X10. With the Ohio 900 next week, last night I fixed the four arrows that had damaged Kurly vanes and carefully inspected the Easton pin nocks that had been on the arrows since the North Regional last Summer (meaning each nock had less than a couple hundred shots on them). I was shooting at 50M when I got a dry fire when a nock blew up. It had not been struck by another arrow in the previous shots and unlike the few other times this happened the arrow was destroyed-two/thirds of up the shaft it broke. All we can figure is the string hit the arrow and snapped it-the F4 top limb had a minor ding where a #8 shot sized mark in the first layer happened. We couldn't find the point nor the last 8 inches of the arrow.
I had a dry fire in this same tournament 9 years ago using a beiter insert nock-but that time the nock felt funny when i put it on the string-(which is why I immediately pull an arrow off the string if it feels different snapping on). This one there was no notice.
most of my kids don't change a nock till it breaks. I tend to change all the nocks in a set of practice arrows if a get one failing on release
I am wondering what others do