Koetsu Rosewood - Best/safest way to clean stylus


I have a Koetsu Rosewood Signature and have been cleaning the stylus using LAST (I think that is the brand) liquid with a brush, followed by using the cueing to drop the needle onto a Magic Eraser 4-5 times. I think this works pretty well, but I worry about the liquid... having read about liquid wicking up the cantilever, etc.

Could using liquid damage the cartridge? Could dropping the cueing down onto the Magic Eraser "grab" the needle and damage the suspension as I raise it? It seems like the only safe way to use Magic Eraser because I don't trust my hands to be steady enough to do it any other way.

Is there another cleaning method that has actually been proven (via microscope) to clean the needle safely and be safe for the cartridge?

Thanks
montaldo
No experience with Koetsu but here's my take. I use to read, years ago about stylus fluid wicking up the cantilever. My response to that is don't play a record after cleaning for a minute or so. I have used the ME and while I haven't attributed any problems to it, it does sometimes "catch" which is an uneasy feeling. I switched from the ME to blue tak, (like Peter Lederman). I still use a Zerodust, a brush, and LYRA STP.
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Montaldo. Fill up a little glass jar with 3/4 91% Isopropyl alcohol, 1/4 distilled water. Get a small soft artist's brush, dip it in your solution and brush the stylus and cantilever clean. Go no further than 1/2 way up the cantilever. You can brush the stylus in any direction without fear of hurting it. I'll do this once a week or so. Between records I use a standard stiff stylus brush wiping back to front only.
I have news for you Last folks. Last is just Freon, Freon with various labels on it. Freon is a great solvent for non polar molecules like oil. It will to some extent clean your stylus and records. It leaves absolutely nothing behind to protect anything. I took a microscope slide and started dripping one drop of Last record preservative at a time on the slide allowing it to dry between each drop. After 50 drops I looked at the slide high and dry. Nothing. Not a darn thing. Everything had evaporated. There is nothing in Last besides Freon. Brilliant rip off. 
I've used two liquid cleaners--LAST and Lyra--for many years and have never experienced any problems.  They are solvent based, so it does make sense to follow Lyra's instruction of not playing a record immediately (Lyra says wait 10 seconds) in order to allow any softened adhesive to re-harden.  

With any liquid cleaner, it makes sense to be careful with application and not slather it all over the place.  Capillary action can, at least in theory, cause a liquid to migrate up the cantilever, regardless of whether it is a hollow rod or something solid, and that is what one is trying to avoid.  This is a concern that was raised with the LAST stylus preserver more so than their cleaner because the cleaner is volatile and will evaporate before it can reach very far.  The stylus preserver does not evaporate and it is sticky in consistency.  The concern is with this sticky stuff gumming up the suspension of the cartridge if it gets that far up the cantilever.  Again careful and judicious application is in order.

I would be a bit cautious with the sticky cleaners, like the Zero Dust, that one is suppose to dip the stylus. Because the cartridge suspension was never meant to be pulled in the opposite direction of playing a record, I would take care to very slowly lift the needle out of the goo.  I know someone who pulled the cantilever out of his cartridge using one of those things.
I used LAST for many years with no problems. But then I got a very nice table top microscope. Examining the stylus tip after cleaning by various methods  reveals to me that magic eraser is much better. However , I think it would be very dangerous to use magic eraser if you attempt to move either the cartridge body or the magic eraser itself while there is contact between the two.  I place the magic eraser under the cartridge body then I use the queuing device on my tonearm to drop the cartridge down on top of the magic eraser, making sure that the magic eraser is completely steady and motionless. Then I use the queuing device to pick up the cartridge. That’s all you have to do. There should be no need to rotate the stylus while it’s in contact with the he ME. That is the evidence based on using my microscope to examine the cartridge before and after. Probably ME will never be fully accepted  by audiophiles  as a way to clean the stylus, because it is too cheap, too easy, and too effective . And has no risk if done correctly.