[ This is the kind of message Five expected, or something like it, days before now. Everything about it reminds him of someone enough to be struck by it instantly, but he's thankfully older now. Practiced.

Except that he still doesn't know where his siblings are and 'tested on a batch' does something to his insides. So he listens very carefully before he responds. ]

I've got my own ideas, if you're interested in efficiency. And a few more, assuming you're expecting another shipment. [ See? Perfectly calm, ignoring the hammering in his chest. ] At your convenience.