Yeah it is kind of competing narratives....colder usually means further south with precip, but in this case it does not. The main shortwave is actually stronger than 00z but the confluence to the north is also stronger....so the two trends combined produce a colder outcome but also a more robust precip shield......which is ideal. You want a juiceir shortwave but also not at the expense of cold....the way to get that is to also trend the confluence stronger.