IBM does still occasionally recommend running RCLSTG. From a quick glance
Not that it's related or anything.
And Chuck left out this paragraph from my post in his reply:
You should be able to verify that with a call to IBM. Be a real downer if
you went through the political process to get permission to bring the
system down into a restricted state to do the RCLSTG *DBXREF only to find
out you should also apply some delayed PTF to fix it and have to get