Interesting information from Analog Planet on Stylus Cleaner Onzow Zero Dust.

@rickd1225 

Thank you! Expertise over speculation 100 times out of 100 !

@dover 

Yes, I can believe that about fluid residue. Before I had my Koetsu photomicrographed, I cleaned it with 95% pure ethanol. 40 hours later the pump on the electron microscope couldn't pull a sufficient vacuum because of off-gassing - and the only possibility, which I was assured was quite possible, was the alcohol.

I've seen a stain form on my graphite platter when exposed to a gel which looks and feels a lot like Zero-dust. So I would take @mijostyn 's caution seriously.

As for waiting until the cantilever is so bunged up with goop that you can hear it, well, you first @daveyf  . The ear just ain't that good at perceiving gradual changes.

@daveyf 

Alas, we have no idea how many of them perceived something but did nothing about it. Perhaps they had no access to a good lab, Perhaps they put it down to stylus wear.