Scott,
You may indeed have bent/damaged the cantilever or suspension. Try to find someone with the same cartridge and get them to send or post a photo so you can compare cantilever angles. If it isn't obvious by now, NEVER apply more downforce to a cartridge than the maximum tracking force recommended by the manufacturer. :(
If it turns out the cantilever is okay, then here's another possibility. I used to use the ExtremePhono stylus cleaning gel, which is similar to the ZeroDust. If I let the gel get above the top of the cantilever tip, it would scoop some up like a little shovel. That stuff would then grab onto every piece of dirt it could find and hold onto it. I had to scrape it off the stylus/cantilever. Try inspecting the stylus area with a good magnifier. A detachable wide angle lens for a 35mm camera works well if you have one, film end of the lens toward the stylus.
You may indeed have bent/damaged the cantilever or suspension. Try to find someone with the same cartridge and get them to send or post a photo so you can compare cantilever angles. If it isn't obvious by now, NEVER apply more downforce to a cartridge than the maximum tracking force recommended by the manufacturer. :(
If it turns out the cantilever is okay, then here's another possibility. I used to use the ExtremePhono stylus cleaning gel, which is similar to the ZeroDust. If I let the gel get above the top of the cantilever tip, it would scoop some up like a little shovel. That stuff would then grab onto every piece of dirt it could find and hold onto it. I had to scrape it off the stylus/cantilever. Try inspecting the stylus area with a good magnifier. A detachable wide angle lens for a 35mm camera works well if you have one, film end of the lens toward the stylus.