I see that when making pulled pork, if it finishes early some people let it sit in the smoker at 140F-145F for a while and then wrap it in foil and put it in a cooler for an hour or more. I understand the idea is to distribute the juices during the rest but I'm wondering if you're letting it rest in the smoker at 145F for a couple of hours, why do you need to transfer it to a cooler? Thanks!