I have 4 of these - the Exteme Phono, the Mr. Clean DD special, the Onzow Zerodust, and a Signet. Here is my experience:
The Mr. Clean Eraser - some people clip off a chunk and fix it to a small stick or toothpick. It works ok, but requires several usages to get the stylus clean. Least expensive, and for me, least effective though I would chose this over a Last stylus brush.
The Exremephono - works well at cleaning the stylus. However, occasionally (maybe 1 out of 20 uses) a tiny glop of it will adhere to the stylus tip. It seems to have greater adherence to the stylus - 'sticktion' if you will. The clamshell container is easy to use, but I thought there shoulda been a bit more goop in it for the money.
The Signet is effective, but I believe it is not made anymore. To use it I have to place it on the TT and lower the stylus - I hate doing this because of the off chance I might move the TT. I use it rarely.
The Onzow Zerodust - US retail can be expensive, though there is a chap (Mehran, username=Sorasound) selling these here on Agon for $25-$35 dollars. If the Zerodust is at full retail cost ($70) I'd go with the Extreme... however for ~$35 the Zerodust is the best, imo. It is gentler than the Extreme and under no circumstances will it leave goop on the stylus because it is not goopy, and it is easily more effective than the Mr. Clean Eraser. After a couple-three month's of use I wash mine with distilled water and its like new.
I examine my stylus after every play with a 30x loupe. Normally I find that with the Zerodust or Extreme you do not need to brush. That is anouther reason I prefer them to the Eraser. Brushing is a liability if you ask me - at least I don't trust myself enough to do it with the Last type brushes - which are kinda course. Occasionally I will use a v. small camel's hair paint brush to clean around the cantilever. Camel's hair (versus synthetic) seems quite soft and safe.
That's my experience - YMMV.
Tim
