I have a Rival Crock pot. There are 4 buttons- High: 4 or 6 hours, Low: 8 or 10 hours. I am gone for 11 hours a day. Does it cook at a lower temp for 10 hours than it does when you put it on 8 hours? I am not sure if I should do it for how long I'll be gone or how long something takes to cook, if that makes sense!