I have tried… using the ZeroStat gun (1 - 3) by instructions for decades ( I have purchased four over time, and brought one out periodically) with no positive results. I lived in Tucson for 25 years… static head quarters.
The Hudson works on the size of the album that is playing. I read about and see the small grounding wire / fiber in the middle of the spray of brush bristles for catching dust. I haven’t delved into the physics… but it both eliminates static and catch’s dust on the playing side of the album. Eliminating to problem. So, for me the Hudson works great.