Questions for anyone using CorFlo tubes. If placement is unsuccessful and in the stomach, do you :1) pull the stylet 2) use the tube in the meantime 3) KUB in AM to ascertain position? How many attempts at positioning (i.e., KUBs before using floro)? What was your learning curve....how many did someone insert before they felt they had mastered the procedure? Do you limit the number of persons who may insert? Thank you.