DeeDee249,
I would bet the house on this assertion: A Ramsey, with premeditation, planned the molestation of JonBenet on Christmas Night!
The date 12/25/1996 was highly significant for JonBenet's killer, not for us who cannot fathom why.
One of the significant reasons, is I reckon, opportunity, because once on vacation, divorced from their normal abusive surroundings the fetishtic molestation of JonBenet would not be possible!
Your assertion regarding the size-12's is not the only interpretation. It may have been the case that either JR or BR wanted JonBenet to have the same day of the week as the size-6 underwear she wore to the White's.
After all why bother with underwear if you then hide it with longjohns. As I've remarked before the Day Of the Week only mattered to JonBenet's killer, because that person was attempting to present JonBenet as she was dressed at the White's.
If Patsy had redressed JonBenet in those size-12's she would never have told her interviewer that the remaining size-12's were in JonBenet's underwear drawer.
Why because she fetched them, she removed the size-6 pair, she dressed JonBenet in the size-12's, then she removed or hid the remaining size-12's. Patently she is not going to leave them lying around.
So if you wish to claim PR redressed JonBenet in the size-12's, you must explain her version of events about the size-12's as related to the BPD detectives.