I think the first ORRR was based on each author spending 72 hours on their room (once they had the file, many of us prototyped before our turn). Sure, some people went a couple of days over, but as we've not really been clear about expectations this time around we are averaging about 2 weeks per room (9 rooms in 5 months).
It's not a problem, just something I think worth noting for improvement next time around. I think fresh energy from LoG2 would also make any ORRR projects based on LoG2 much faster.