I might be missing something,
Until someone comes up with a plausible story we're all a tad confused at the moment, methinks.
Isn't V1 (min) 1.05 x Vmcg by FAR 25
Present (and recently preceding)
§25.107 infers something along that sort of path. [You may possibly be thinking, explicitly, of 25.107.(e).(1).(ii) ?]
A Vmcg thread junkie
We're a bunch of sad cases, I think ...