Just read an interesting article on what is “smooth”. Not yoyo related, but going to post it anyway.
Personally, it should never annoy anyone that builds anything when your work is critiqued. If a customer tells you (or even a friend) that a yoyo you made has too much vibe, for me I’d start looking at how to minimize that. Can you get rid of it completely, probably not, but why not try?
All but one of my TMBR’s are almost completely smooth, the 10-15 No Jive’s I’ve kept in my collection are the same way. Out of the 50 or so fixed axles I own, very few have visible vibe, and the ones that do I’m fairly confident I could get rid of it if I wanted to.
The standard should really be as smooth as possible, and when you get to that point try to find ways to make it even smoother. There are a lot of ways to minimize vibe on fixed axles, especially for the guys making them with routers. Matching weight of halves, matching grain, orientation of the halves.
Really, you should want as many people as possible to enjoy what you’re making, so if minimizing vibe does that, that should be a goal. We shouldn’t have an elitist attitude that “fixed axles have vibe, and you need to learn how to deal with it.”
When creating anything, unless you 100% know you are building the best product on the market, feedback should never be annoying.