"some people do just fine on iv chelators it seems,..."
== Sure, my best guess is that they are the ones who don't have much of a mercury problem. They have a combination of decent detox genes plus modest exposure. They've excreted most of the Hg they absorbed. It is the badly Hg toxic folks who get messed up when the high doses from IV kick up the HMs. It is somewhat like dusting your dining room table with a leaf blower. It removes lots of dust but you end up with more dust on your chandelier which is much harder to clean.
"...sure cutler points out a few cases of people who got screwed up by them but ..."
check out dmpsbackfire.com and the Adverse Reactions folder in the Links section of the Frequent Dose Chelation group.
"...people also get screwed up by his frequent dose protocol..."
We hear from a small number of really sick people who only tolerate less than 6mg DMPS ever 8 hrs. If they had tried a more common dose of 25mg they had lots of sfx for several days! Also there are a number of people with really messed up adrenals or who test positive for Hg allergy or have rather serious psychiatric symptoms who struggle in the beginning on anything more than tiny doses of chelators. These people usually gradually improve on a combo of the recommended support supplements, sometimes medicine, and many, many months of low, frequent dose chelation.
What we *don't* hear about are the long term adverse effects that we hear about when sick people use IV.
"...fwiw most of his research came from some other guy to (cant remember his name now but there was one guy who came up with the protocl well before cutler did...)"
Cutler has not done the studies on rats, etc himself. Among the papers that were important for his "protocol" are the two on lipoic acid that are discussed in this discussion between Cutler and a member of a yahoo group. http://onibasu.com/archives/am/74605.html
Actually if you read or listen to Cutler on the subject he doesn't take much credit for his protocol. He says something like it is brain-dead simple stuff right out of the medical text books. He somewhat jokingly says that the liberal arts majors who are now accepted into med schools skip the chapters of the med text books on kinetics because the math is too difficult for them. http://en.wikipedia.org/wiki/Pharmacokinetics
I suppose that's more than a bit of bias from a guy with a PhD in chemistry and decades of experience as a chem engineer.