I have quite a few arrows that have the Marco BJ style nocks that fits the aluminum cone ends. The nocks are all a bit too tight on the string. I've heard remedies of dipping in boiling water to soften then fit on the offending string and let cool to size, drilling carefully and / or filing. Are these procedures OK?
Seems they make only the one size nock.
I'm already using a 12 strand string but the nocks are still a bit too tight.