The test does not match one of A Cutler's counting rules for the effect of mercury--Hg--on mineral transport. That does not rule out the involvement of Hg especially in a person who is taking generous amounts of supplements and who has gotten some gains from them.
It also does not look like a normal test either; however it does not have the most common appearance we see in the detox groups.
When antimony is high I tend to wonder if the person needs methylation support. Cutler seems to hint at that in his writings and I've read that elsewhere. Have you tried B12, folate--folic acid--etc?
In the Yahoo detox groups the rule of thumb is that when a person gets a reaction from taking a Hg chelator, it further suggests that Hg is involved to some extent.
Have you tried high thiol foods, supplements or medications and had unusual response to them?