3.0 STUDY DESIGN: The study will be a prospective randomized controlled trial. All patients undergoing ERCP for standard indication including stones, leaks or jaundice will be eligible. Those who have undergone prior sphincterotomy, which ensures biliary access will be excluded. Additionally those with prior ERCP and failed bile duct cannulation will be excluded. Additionally, patients who require ERCP only for pancreatic indications such as pancreatic duct leak will be exlcluded as bile duct cannulation is not required for clinical indications.