I had sta-loks on my last boat
and norsemans on my new boat
I replaced all my standing rigging
when I got my current boat
, and inspected and re-used almost all of the Norseman fittings that were on the boat with a few exceptions (below). None of them had any signs of corrosion
, galling, or other deformities.
The issues I did find were that some of them were probably over-tightened a little, and the wire had left a grove on the inside of the fitting. They were probably fine.
Any issues you have will be with the wire inside the fitting, not the fitting itself.
You can get new cones here: https://www.tylaska.com/product/norseman-gibb/
There might be a cheaper source.