Dear @sidvicious88 : There is no way that are-tipper fix any " today " LOMC model to its original status.
Cartridge manufacturers ask to the cantilever/stylus tip premium and sometimes special parts that only that manufacturer can has.
In the other side when you send to the manufacturer say A koetsu you will receive not only a new cartridge but a new cartridge with manufaturer up-grades on it that any re-tipper can know about and we have to take in count that ith top of the line cartridges the designers make listening tests ( with the designer room/system that is different on each manufacturer and certainly no re-tipper mimic any of those room/systems. ) on it and fine tunning to what they have as their own tragets/priorities on quality performance level of those cartridges.
Regards and enjoy the MUSIC NOT DISTORTIONS,
R.