You might try contacting the INDY BOYS with a PM, or ask Christine or Carpsniper to hook you up with one of the guys from team Carptrek.
Both teams bowfish Indiana, and the Indy boys are in the Southwest part of the state.

Johnny B and a few others are right across the IL state line and may have explored that area.

Feel free to come back and post any good spots you find.
Good luck.

-Bulz