QSPGETF vs QSPGETSP

Is the semi-documented QSPGETF program a wrapper for the spool file apis?
I've been fooling with archiving spool files to tape with formatting and
other properties more or less intact.  I was planning on using the apis to
write to a user space, write the contents to a file I could back up to tape
and use the create and put apis to restore. Looks like QSPGETF and its PUT
counterpart do what I want.  I realize IBM says they're unsupported.  Am I
better off wrapping the apis myself?  From a cursory look, the data from
each approach look the same.
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