Because you have more lead than just vascular and to treat that you would need such massive amounts of daily C that it could play havoc on copper and other issues.
Plus even a tiny amount of DMSA binds up more Lead than 20g of C. If all your problems where just vascular you could just do that but you have Lyme and have lead on other places.
We started with AOR TLC3 and it did a good job on the vascular issues but soon two doses where not enough then 6 doses where not enough...once you get the flow moving out you want something to catch it...unless you want to be completely fatigued all the time that is.