"The real issue is that the metals do NOT sit where they are until they come out. Chelators ccan move them all over the body. The most damaging place they can be is in the brain, and the next most damaging is in the liver.
"A lot of the metal that is sitting quietly in a muscle, bone, kidney, or ligament and not really causing much damage there can be moved INTO the brain and liver if it gets stirred up and there isn't chelator around to keep it company until it is excreted.
"So improper chelation with too long an interval between doses actually can make people MORE poisoned by INCREASING the amount of toxic metal in the brain and liver even though the total amount in their body does decline. ...With improper chelation some things get WORSE. Then it takes LONGER for those to get better than if proper chelation had been used all along. http://onibasu.com/archives/am/53055.html