Just don’t get the stuff with coloring, fragrance, or nail strengtheners etc. Then it’s pure. I use it too and it has never left a residue and works great.
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Never got that deep into it. Based it mostly on things like beherenow mentioned above and anecdotal evidence over the years.
Some.magicyoyo bearings the 10 ball gold plated can be a bit grindy or not all smooth i ise lighter fluid they still work great and are excellent bearings. Ir get a difeyo kk the best i think next to nsk
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