Just a little info
One of my 3D setups has been checked at a few events, the average speeds were 347 to 350 that being out of my Monster. My arrows used are equipped with pin nocks, the nocks used are the heavy duty Bohning pin nocks and with these I have never had any issues yes they are tough, but you still need to check them when getting smacked around by other arrows. Gold Tip has a new HD nock as well and I am looking forward to using these as well.
I will state that prior to the Bohning HDs I tried the Mc Kinney nocks which are better then the standard pin nocks but I did have a brand spanking new nock fail at the Vortex shoot 2 years ago causing a zero for score and the bow was fine allowing me to continue, this is when I switch to the Bohning HD.
Pin nocks are accurate and they do a great job for protecting the back of the arrows, but once in a while you still can have a arrow get damaged in the back, Check your nocks and arrows when playing hard, it can save scores and prevent accidents and injury.
I use and depend on them
Just my opinion