I just found out at 1pm Central time that a friend of mine would like me to cook a 25lb chuck roll he ordered for a party at his house tommrow (saturday) at 6pm. I have searched the forum and found plenty of good information. Should I plan on a 24hr cook even if I foil at 160 degrees? If so I am thinking about putting the Roll on at 5pm tonight to allow for at least 1hr of rest time tommrow. Also, would it be taboo to cut the chuck roll into smaller roast (about 8-10lbs) to reduce the total cooking? Any advice from the chuck roll guru's out there would be appreciated.