You sound interested in growing them. If you get caught and they can prove you were extracting them it's a drug manufacturing charge. That means federal prison...
...buying some heroin or buying an oxy is much safer and more convenient than trying to extract/refine/distribute purified opium...
Gotta love prohibition!
I know different poppies yield different amounts of morphine, thebaine ect. but I dont know how this will affect your opium yield. Can anyone specify? I'm not interested in growing poppies myself, just a little curious