It is good that you monitoring stylus after applied Pfan-stat using a microscope. When looking into record cleaning machines on the market, some of them are talking about deep cleaning needed for the chemical residue for the new records coming out from the factory. I assume that you can see the chemical residue on stylus under the microscope. I am taking a different path. I avoid using record fluid when cleaning my record (using distilled water only) unless necessary. I am very careful about the cartridge cleaning and record cleaning fluids after re-tip my cartridge (and got comments from dealer) a few years back.
The anti-static gun (Milty) is effective for neutralizing the pre-exist static on the record before playing. The Pfan-stat is good for avoiding the static build-up during record playing. Then, you are covered and will not need to use the electrode.
https://midwesttungsten.com/2-thoriated-1-16-x-7-red-wt20-tungsten-electrodes-10-pack/ But, It is always fun to try different kinds of stuff.
Please be careful when installing the electrode so close when playing your collectible record with the costly cartridge. It will be great if you can share the result after using the electrode.