which did not define a particular protocol. DMSA is typically dangerous unless you use it via the Cutler protocol: small amounts every 4 hours, day and night. One of Huggin's suggestions with DMSA is very roughly similar to Cutler, but most of what Hal suggests with it is dangerous as well.
Your initial post said 3 days on and 8 days off, but the most important thing is how you are spacing the doses within the days. And of course, the dosage itself.