Neville,
Actually, I made a huge typo in the statement I made earlier:

"BTW, from what I have been to determine silver particles greater than about 
1.5 microns are too large to pass through the intestinal walls and so yellow 
EIS has particles too large."

I should have said nanometer and not microns.  

I agree that particles vs ions is a personal choice/opinion. Admittedly I am 
one of those who believes in taking a little of a lot of herbs vs a lot of a 
few. That runs the risk of not reaching a theraputic level of a particular 
substance. None the less you make a choice based on what you are able to learn. 
 - Steve N