I think this discussion belongs in the EPUB forum as Calibre (mostly
) follows the standard and does not
set the standard (except for excellence if flexibility
).
It does little good, if the devices don't bother to use the
standards we already have
(Apple? Amazon? are you listening?).
FWIW I also use a index of 0
You could use a more complex template and drop the {Series_Index} when it is 0 when sending to your device