I purchased some of your Atomic silver from the eBay store which was the only place I could find it available in the UK. It cost me a lot of money for a 16 floz 2000ppm bottle. The website URL on the bottle is identical to the one in your profile BTW.
I have used Reduced Colloidal Silver ie the stuff you describe as the ineffective stuff due to the large particle size. It largely ie 2/3 rds destroyed a biofilm protected infection which I believe is a gram positive Staph infection in my stomach which allowed my digestive system to heal. It did fail to destroy all the other 4 stomach infections. Even with their biofilms eliminated which produced an unpleasant stomach feeling, silver failed to destroy them. Are you aware that micro-organisms have developed multiple resistance mechanisms which allows them to resist silver? Particle size is irrelevant to these resistance mechanisms.
I tried the Atomic silver with high hopes that it would destroy everything and......it did absolutely, nothing a total fail!!! It failed to have any effect whatsoever. Very expensive and no better than water, which I wonder whether it was plain water. It might as well of been water.