Way back when, when I updated my 3592 drives, I seem to recall I was
able to write the higher density format to the old tapes, once they went
through a scratch cycle...  We just went through a long period in which
space got ... easy. :)

I'm contemplating updating from the E05s to the E07s now, and I want to
double-check that this is the case at this transition, too.  Or am I
insane and remembering incorrectly?

Any war stories about drive hardware updates?

- Allen S. Rout