I'm just not managing to grasp any logical reason for the multiple pieces of tape to have been placed on a live child in the manner that they apparently were.
If the purpose of the tape was to silence Caylee, one strip directly across her mouth would have achieved that, in which case I can't think why it would be necessary to place the tape under her jaw as well. It seems, from the information released, that it must have been at least partly under the jaw bone, otherwise once the flesh of the lips/cheeks/chin had gone then IMO the jaw would have dropped.
If the tape was used to cover her mouth and nose in order to suffocate her, it seems to be to an over-complicated and unnecessarily tricky and time consuming way of suffocating a small child. Caylee would have been struggling and fighting with both her arms and legs during this period of unrolling, tearing and applying multiple strips of duct tape, unless she was bound. If she was, that would mean binding, unrolling, tearing, applying, unrolling, tearing, applying.........then unbinding her limbs again when she was gone (because no evidence of binding materials were found). This seems nonsensical to me when a pillow or an adult hand could do the deed with much less effort!
If the pieces of tape were applied to both her mouth and nose - she couldn't then have been chloroformed.
If she was chloroformed first, there would have been no need to go through the multiple taping exercise - a pillow or hand would be much less bother!!
It's possible that the tape initially covered not only the chin, mouth and nose, but also the eyes. The eye sockets of a small child are incredibly close to the nasal bone and it's possible that the multi-strip covering of tape may have shrunk/contracted over time due to heat or water-shrinkage and that it originally covered a larger area.
Maybe KC wanted to cover up all of Caylee's face.