Not sure how accurate this really is, but this is what I in one area.
I noticed a wide disparity in size among most congs. in comparison to a few years previous. Most cong. growth now is due to jws moving from cong. to cong. -- rarely is it growth rom new people. So some cong. were very small and almost ghost towns, whereas other cong. were busting at the seams from new move-ins.
What I think is interesting is that the congs. that were busting at the seams were those considered more liberal -- where a jw could go and lay low, or and ex-elder could go and just throw up his heels. Those that were almost empty were those with a history of being hardline or had an older demographic where all the young were non-existant or had moved to a trendier hall.
Like I said, I'm not sure this is accurate or the case in most areas.
Axel