Q&A: 7.5 mm rope question

Hey Andy, I'm trying to figure out whether it's okay to bring up two seconds at once each on a single strand of Mammut 7.5mm Twilight (half+twin) rope. On a solid anchor, belaying from a Reverso 4 (rated for 7.5mm) in guide mode. Seems if a single strand can (mostly) hold a leader fall on its own, it should be fine to bring up a second (with little slack) on a single one..? But I can't find any official information actually stating this...

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