Well its not going to matter who wants it east or who wants it west, Its going to go where the upper air pattern wants to take it and the phasing or non phasing of both the north and southern jet stream with these s/w's, I think were still a good day away from determining any of that so your stuck with a bevy of solutions until models figure out the placement of the trough and how these s/w's end up interacting with ea other which will ultimately give you where the SLP is going to track in the end.