I would guess you want your best chances up front. Both the 28th and 29th are OK right now. I would be ready to go for the 28th, then you would have to decide if you do not make it up front if you wait to try on the 29th or just go in back. Both days look great in back. Returning the 11-14 look great right now, even up front. Not sure how long you want to be over there though, returning in coach anytime looks good though.