Cut off MM stylus plastic?

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Anyone ever do this? A good number of style has a diamond shape you push into the cart. Has anyone tried cutting off the plastic face and just using the diamond with the cantilever & tip?

I'm not sure which carts would be unstable this way, as I haven't opened a lot of them up to see if there is internal guide or if it's just the hole and the plastic face that holds it in place.
 
I don't know others, but Ortofons have a rectangular brass tube that holds the stylus and magnet. The tube has a rubber piece at the far end that supports the stylus. This brass tube slides into the hole on the cartridge body, and you grab it by the mentioned plastic piece. If you remove the plastic you won't have a chance to pull out the stylus assembly. And probaly it will have loose fit in the hole, that is not good.
BTW it has been reported that removing the foldable stylus protector plastic piece improves the sound.
 
Those foldable stylus protectors are bad for sound. I have removed them on a few.

ejp it's not enough weight that correcting VTF isn't enough to compensate. You aren't radically changing to a different kind of compliance.

The plastic piece that holds the stylus is often a resonator. Making sure they're stiff to the cartridge and even damping them a little yields good results.
 
I wouldn't do it, 'cause I think the mechanical alignment between magnet and pole pieces could get upset. I know, though, that Shure styli designed for a M91 cartridge can be hacked to also fit into M75 carts by reducing the height of the front plastic.
Not every Ortofon works the way as described above. Needles 10, 20, 30, 40 or Concorde needles, for instance, don't feature any brass tubing.
Best regards!
 
This is part of repairing a broken stylus on the Clearaudio Vituoso if you are mimicking the original stylus they mounted with some version of the ATN95.

Did it myself several years back...as have many others.

How to change the needle on your Clearaudio MM for 30 euros

I’ve read some have left the plastic intact for fear of damaging the stylus under surgery. It mounts on the Virtuoso either way. As far as sonic benefits to either method, I have not compared them.
 
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