i have done about 70 rounds according to my diary, not all the same doses.
i started off with 6mg DMSA, now doing 25mg dmsa, 30mg ALA, every 3 days withouit fail.
i dont know if chelation has done me good, i do know that amalgam, vaccines, tuna, etc put my hormones out of wack and replacing/balancing them has helped in a major way.