The blood level of mercury certainly does not tell you anything about your total mercury load acquired over the years. The reason why I mentioned the blood test is that you could find out to what extent Miracle-Mineral-Supplement has mobilized mercury. Since you seem to have comparative values this could be quite valuable. If the blood levels were still comparatively low, you would not cause much trouble with Miracle-Mineral-Supplement and you could possibly continue while working with a moderate chelator in between Miracle-Mineral-Supplement doses. IF the levels were substantially higher, you would need to consider a different strategy. But you seem do be doing this anyway.
By the way, last year I had done blood tests just after 2 month of very intense sport. I was showing a high level of oxidative stress and my mercury levels were way above average. When you do a lot of intense exercise, the body produces more H202 as a result of increased metabolism, and its oxidation power probably had mobilized mercury in the same way we would expect this from ClO2 produced by MMS. The advantage of CLO2 over H202 is its lower oxidation power causing significant less damage to body cells than H2O2, while being efficient to destroy pathogens and possibly also toxic compound deposits. However in both cases the body is left alone to deal with the mercury and other toxic substances that might be released.
When dealing with mercury, which is another very complex subject, you would want to consider the differences between inorganic and organic mercury compounds. And each chelating agent has its own profile. Some work efficiently for the blood, some cross the blood-brain barrier, some only for the intestines, etc etc. You would then want to be very careful in choosing the right order in which to apply chelators. But that is all discussed in other forums at curezone.com