Colonscopy Prep Suggestions?????

Well, doesn't look like I'll have to do the Half-Lytely this time. My GI changed colonoscopy preps in the past two weeks. Instead of getting the Osmo-Prep pills, he's making me drink MoviPrep, which is by the same company. Less liquid and it's supposed to not taste as bad and be gentler. I had HORRIBLE cramping with the Half-Lytely and couldn't finish it. I don't suppose I'll be able to finish this crap either but at least I don't have to drink the Fleet's as well. And he didn't prescribe any dulcolax either. Which kinda makes me wonder how quickly this Moviprep is going to work...that'll be next Sunday's adventure. Thanks all for your help!