I will repeat that I had more improvement in 6 months of using cilantro than I have had in years of using DMSA/ALA. By your reasoning that's impossible, and yet here I am.
I'm not sorry I used Cutler. I think DMSA's helpful since it helps with a variety of metals and has fewer side effects, but it's very slow and isn't the most effective way to remove mercury.
There are also people who get much better from using DMPS, but there are people on this list and elsewhere who try to convince you that the stuff will kill you.