New 48V remote system - redundancy by combining Smart and NG?

New 48V remote system - Would you create redundancy by combining battery clusters of 2*25.6V Smart batteries and 51.2V NG ones

For me the cons and the pros equal out (or maybe the cons win)

Your thoughts?

CONS:

Smart products closer to EOL

If a batteries dies two in Series must be switched off with Smart

No cell voltage info remotely

PROs:

redundancy in case of potential yet unknown hardware issues