Yeah, I'm not sure if I would have had the choice for my preps, out of all 3 scopes, I had 3 different preps, all the same Gastro group of docs (2 different docs total), although the most recent was a sigmoid scope...
First was in the hospital, had to drink 1 gallon of the stuff, the worst...then I had half pills, half a gallon for the second scope about a year ago, then, the most recent were Fleet enemas and clear liquid diet, for the sigmoid...actually, the middle prep was the easiest, only because the enemas hurt like hell from all the inflammation, I have inflammation in the rectum among places, so it was torture.