[QUOTE=emcampbe;37017574Also, if we come back to either same or different T3 lounge prior to departure, would we be allowed to enter again based on the same PP membership?[/QUOTE]

If you return to the same lounge, you might be able to convince them it is the same "visit" during your long transit so no need to clock another visit.
But if your PP entitlement is unlimited, then it does not matter. Go to as many PP lounges as you wish.