Jeff,
I am very interested in the conditioning methods themselves, if you have some more specifics I would like to know. When you say lead pellets, I hope you're well informed of the dangers in training with lead? When you strike lead, minor lead particles will spread in the air which can be inhaled accidentally. Steel/Iron pellets do not have this danger..
"In adults, lead can increase blood pressure and cause fertility problems, nerve disorders, muscle and joint pain, irritability, and memory or concentration problems. When a pregnant woman has an elevated blood lead level, that lead can easily be transferred to the fetus, as lead crosses the placenta. In fact, pregnancy itself causes lead to be released from the bone, where lead is stored—often for decades—after it first enters the blood stream. (The same releasing process can occur with the onset of either menopause or osteoporosis.) Once the lead is released from the mother's bones, it re-enters the blood stream and can end up in the fetus. In other words, if a woman was exposed to enough lead as a child for some of the lead to have been stored in her bones, the mere fact of pregnancy can trigger the release of that lead and can cause the fetus to be exposed. In such cases, the baby is born with an elevated blood lead level.
Routes of exposure for adults include both ingestion and inhalation. While it takes more ingested or inhaled lead to cause adverse health effects in adults than it does in children, damage to an adult's kidney can occur at exposures of about 40 µg/dL. Nerve damage and anemia can occur at levels of about 60 µg/dL. Long-term exposure to lead is linked to high blood pressure and strokes. Chronic high-dose exposures can lead to end-stage kidney disease. Levels of 150 µg/dL and above are associated with acute lead encephalopathy, whose warning signs include joint pain, irritability, headaches, constipation and abdominal pain. At such levels, it is not unusual for the adult to experience convulsions or paralysis, to lapse into a coma, or to die." --
http://www.nsc.org/issues/lead/adultlead.htm
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Love, Peace, Harmony.
Bob.