Modeling overnight, including the 6z Euro and Eps, have strengthened the cold push at day 6+. If the southern vort came up earlier on recent modeling, it would stay south in all likelihood. So it's not necessarily a bad thing it's being delayed. Bottom line is that it is soooo difficult to get the perfect timing needed for a decent event as depicted on the 0z. All we can hope for now is that the Euro AI is not right at this range because there's no chance for anyone east of the Mississippi if it is.