Why does it have to be so "one or the other"?
Seems like any black or white approach would severely limit one's flexibility in a situation.
If I am diving Solo, does that mean no 7-foot hose? Why would I not want to dive the same configuration, as much as possible, for each dive?
If I am equipped to dive Solo, does that make me any more or less of a buddy? Isn't that more of a mental attitude than anything else?
Doesn't prudent gas management planning make prudent planning in both circumstances?