Well, my goal at this point is to be in a position where a colonoscopy would be necessary. Right now I feel like I'm fighting in Helm's Deep and the idea of periodic monitoring looks pretty darn good!
I remember waking up during my colonoscopy when they were trying to get the scope past the tumor so they could see the rest of the colon. It was pretty uncomfortable, but they upped whatever med I was on and it was back to dreamland in no time.
I think the moral of the story is that you should insist on being pretty heavily medicated, especially for post-surgical scopes. It just stands to reason that the turns are tighter and the route is narrower.
I ask for pediatric stuff for all throat related procedures anyway because I'm a singer and I want as little trauma to that region as possible. But now I'll know to ask for the other end as well