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Success!
I've been having trouble getting my computer to post a response. This is my fourth try.
I successfully removed the lead deposits from the cavities by heating it with a Bic lighter. I then chucked up a bore brush in my drill and spun it in the cavity. It took a few times, but its all gone now.
After reading the above posts, I'm sure I over heated the mold on my hot plate "pre-heater". Besides that I was cutting the sprue too quickly. I now have the mold reconditioned and will run it some more next week.
Once again thank you all for your collective wisdom.