The questioner stated that he's now getting the list's subscription file
and comparing it to the public review file in order to arduously deduce who is
not on the public review file, i.e. who is concealed.  Isn't there some
special character to search for in some certain column (81-100) in the control
subscription file that will tell instantly which subscribers have set CONCEAL?
 
-- Roger Burns  [log in to unmask]