I have a redundant colon as well , they have done two colonoscopies with no luck of being able to get trrough the colon comletley, so I had a lower GI to make sure there were not masses etc..... The gastro said at some point he wants me to go to the hospital for out patient to have the colonoscopy done under general ansth, so they can use the pedeatric scopes to finish,,,, he said having another one would be for not.