Not sure about that. To me, LR always seems to even out. I do remember 78 being particularly tough, but you don't want to use that for your 5th. I think you'd be okay with a random sampling or a retake, but if you do find info on this, let us know!
@annannann Basically JY opens up the registration at a random time and whoever sees that the registration is open and signs up for it first gets one of the four spots. So, it's really all up to chance and basically refreshing the page constantly.