Keep in mind that if you have your Koestu "retipped" by other than Koetsu itself, you may not be getting a Koestu back.By this I mean that depending on what needs be done you may end up with a hybrid(ex.-VanDenHul or Benz Micro generator in your Koetsu body).By the time most stylii show enuf wear to need replacement, the suspensions are also in a bad way.In every case that I am awares, the cartridge will be overhauled with the "re-tipping" services own parts.
Best,
Ken
Best,
Ken