I recently stared the thread ''on what there is'' but , alas, this was not
an success. Beryllium is toxic and forbidden in order to protect labourer..
This means that production of beryllium cantilevers is forbidden. However
we can't know what individual retippers have in their stock. It is possible
that your retipper bought an ''huge amount'' when those were available.
I have never heard about retip problems with cactus styli. My point was
that assumption that each manufacturer uses his own ''uniqeu stylus''
such that other styli are something totally different is based on sand.
Or that manufacturer and retipper use the same styli. However ''original
stylus'' suggest something else. That is the problem of the word ''original''.
''Original'' also assume identity otherwise we would have no idea what
we are talking about. Hower such persons can't be excluded,
Japanese economic success was based on improving western technology
and this presupposes changing their ''originality''.
Otherwise there would be no such aversion against retips. My point
is that retipper use the same styli as the manufacturer. My point is
nor ''what kind of cantilevers there are''. Identity assumes recognizing
the thing to be recognised. There is no other possibility . The owner
of object is supposed to know that this object is his ownership.