Removing heavy metals is a long process and, for many people, it takes years to accomplish. I could feel the effects of chelation for the first year I did the protocol. Then, sometime in the second year, I stopped feeling the effects, and I could no longer feel the progress. That's why I switched back to C and C (as I like to call it) as an experiment. Despite the side effects of C and C, I've been pleased with the results so far.
Here's a site you can check for more info about the Cutler Protocol.