Loosening the endpin

[Michael Case]

My end pin has loosened over time. There is no rattling, but every once in a while if I don't tighten the screw on the center of the notch the pin will shift down while playing. I used to fit really nice and I was able to feel when I got to the notch and tighten and forget it, but now it's not like that. Does this require a new end pin if I want to fix it?