Good job!

I seem to remember having shifting problems on my mid-80s bike, and it turned out there was a tiny hole that was a cable guide that was unnoticed when the cable was installed. Putting the cable through the hole made such a difference.

I don't do any of my bike repairs, mostly because I like hanging out in the lbs, but also because it's like you have to be a detective, or a scientist, to figure a lot of things out. What always seems like it should be easy, like where that annoying little ping is coming from, requires FBI-like analysis.