I don't even know for sure what "machine built wheels" means today. I don't know what modern wheel building machines look like or how they work. I know that I like having hand built wheels on my personal bikes because I get satisfaction from building them myself.
Since I'm operating with zero failures with either one, what possible basis for comparison should I be using?
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My greatest fear is all of my kids standing around my coffin and talking about "how sensible" dad was.