Your favorite carbon fiber cleaning brush ...?

None of them work in a dry climate like the AZ desert.

My Hunt EDA MK6(now Music Hall) is so old....

the carbon bristles that normally extend beyond the velvet pad are worn flush to the pad! 

One of these years I'll replace it with a new Music Hall. The price has almost tripled since I bought mine.

Record Brush Hunt EDA Mark 6 | LP GEAR

I honestly don't use one. I keep my records clean with a Degritter II, using just DW mostly. I also clean my stylus religiously, with Lyra SPT, before each listening session, and with a dry brush after every record. I have a Roksan two-stage micro-fiber brush. It works better than anything else I have tried, but the truth of the matter is they all just rearrange the dust on the disc more than anything, and don't really remove much from the disc. I guess YMMV depending on climate/environment. I am in an HVAC managed listening room.

https://www.ursa-major.eu/shop-us#!/Record-cleaning-brush-Ash-wood-inset/p/141017570

@danmar123   Unfortunately, due to the tariffs etc., Ursa-Major is no longer shipping to the USA.