__X___ Yes I rely on this undocumented "feature" of LISTF
______ No I don't need LISTF to update the EOF on disk
______ I don't know yet but I will get back to you.
Although I will be able to survive with out it, I must say that I like that
feature. Not every programmer provides code to report the progress of his/hers
process and many times 'two' simple listfs will give me the needed feedback.
(which is even better than the situation in the MPE/V days, where one could see
the 'eof' being updated when an extent was posted to disc).