I checked in at T6 this morning and also turned right from the Premier Lobby to go through T6 security (instead of turning left to the T7 checkpoint).
While construction at the T6 checkpoint has appeared to eliminate the premium line for now, the queue was very short, three lanes were open, and it only took a few minutes to get through. Also, the NoSs were turned off. Much better than the cramped T7 checkpoint with long lines and active NoSs that I had experienced the previous few times. ^