[QUOTE=TownCar;28462446].

So yes, i could either check in early and try to grab an unblocked A or K seat (which is fine by me), or leave it as late as possible in the hope that all allocation is gone and I get upgraded QUOTE]

Leaving it as late as possible is a bad strategy lest the person in 68D vacates to take 61A/K leaving you, should the upgrade gods not smile upon thee) with a flight enjoy the dulcet music and scents of the WT/WTP lav.