In Africa (or any other place with DG) WHEN are you going to carry the 9.3 ?

This 450/400 & 9.3 combo gets mentioned alot as "perfect".... but it seems to me like you would always be carrying the 450 and the 9.3 becomes a backup, not to be used unless the 450 dies.

Nice problem to have, but...just wondering.

Your thoughts?