If you have 2 probes it is good to monitor both the flat and the point of a packer. The flat will often be done before the point. When that happens I separate the point from the flat after the flat comes to temp and put the point back in and continue cooking. They are easy to separate at this time as the fat between the two slices like butter.
Go about halfway throught this
video to see one technique for separating point from flat (just ignore the first part of the video and the video does have a short ad before it starts).