Thanks for your post. I have been eying the coloidal silver for a long time, but so far felt uncertain about its efficiency in the concentrations as found on commercial sites, anywhere between 3 and 10 ppm.
What you say makes a lot of sense to me. Where have you gotten the original 500 ppm silver if I may ask?
I am right now reading through Robert Becker's "Body Electric" and the high local silver concentration [especially combined with electro-application] makes a lot of sense. You have just convinced me to go for that combination, even though it vere not your intent.