You went to a great deal of work. I executed "alter database backup controlfile to trace" on Oracle versions 8, 9, and 10. In all cases sizes were specified for the log files, but no size was specified for any of the datafiles. I believe that in a create controlfile statement, you can omit the sizes for datafiles altogether. None the less, you deserve a great deal of credit in sucessfully recovering a database in what is always a stress filled time.