Jbad, welcome to the Forum. I’m sorry you had a part failure. Wicked edge will replace it. They are good about that. That’s the first of that type of failure I’ve seen. If your knives look good and more importantly the cut well and to your liking then that’s all that matters. An angle is just a number. If the knives work well, use them and enjoy them. Next time you need to sharpen them you’ll address the issue.
You’re unnoticed mishaps leads me to believe you aren’t monitoring your angle settings with a digital angle cube. I believe if you were you should have noticed the angle change as soon as the ball joint let go. I measure and micro-adjust my angle settings with each and every grit change. For some WE users this method is over-kill. I like this method. Maybe find something in-between that lets you keep a closer eye on the mechanicals.
Also, a sharpened knife does not need be symmetrical or the bevels even to be very sharp and cut well. All that matters is the precision and closeness of the two side bevels meeting at the apex.
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