It seems to me that the relationship between active regions and sunspots is 'complicated' to say the least. While the highly active region did produce a sunspot as I thought it would, the smaller active region that formed yesterday (and the day before) in the northern hemisphere is actually producing two different sunspots of approximately the same size as the larger active region in the southern hemisphere. It's not necessarily the case that larger active regions necessarily produce substantially (proportionally) larger sunspots.
http://stereo-ssc.nascom.nasa.gov/brows ... 95_512.mpg
FYI, there was a small flare that occurred around noon today near the equator, almost directly above the larger active region. It looks to have been a fairly small event.