Just to make a it clear.
When we discuss Count, we are counting Line items (titles).
Each title can contain 1 to some N of (ready to go) formats.
Not having a 'Ready to Go' format can slow down loading up your reader, as it has to make the conversion on the fly
So the important thing is to merge, different formats of the same edition.
This can be done later, as you find them (I would disable the Auto-Merge Preference if you have Multiple editions that you want to keep them separate or they might jumble or replace others of the same format)
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