Funny coincidence -- since I posted the first message of this thread, I read the September issue of Dr. Jonathan Wright's newsletter Nutrition and Healing. It's all about CS. He talks about Argentyn 23 and Sovereign Silver, and believes they're superior because they have smaller silver particles than previous ones -- .8 nanometers vs 14 to 26 nanometers for the "old technology" CS.
Any comments? Anyone know what the particle size is for homemade CS?