FOR is that Good?

A recent question about a set of files that are shared between about 60 CICS regions, should they be in a single CICS File Owning Region (FOR), so they could be opened/closed/set read only only once, instead of 60 times? Apparently this set of files is updated in a production CICS region and then may need to be Open/Closed in the 60 development regions after the updates, so those regions will reflect the changes. Currently the Open/Closes are done individually.

The FOR would allow the 60 development regions to share the set of files and buffers and the Open/Closes would only need to be done one time.

Any other plus's or minus's......???