Assuming R space is available (I'm not sure why R class is not even shown YYZ/YVR/ICN on April 21), can an SE along with the companion SSWU upgrade occur at the same time 7 days prior? That companion happens to be my mother. Assuming J is available at check in/boarding, any chance that they would allow me to have an additional companion (father) upgraded using the third SSWU (I realize 2 is the limit)? If not and I get a total of 2 in J with 1 in Y, I will obviously be the one sitting in Y.