I am moving to Oklahoma and will be closer to MO and am planning several trips to explore the caves of MO. I was thinking about bennett, boiling springs, roubidoux, and cannonball. Has anyone dove cannonball? If so do you have any information that could assist in me finding it from the shore? Are there any shops in MO at do trimix or will I have to bring all my own gases with me? Any information about these sites would be greatly appreciated.