http://www.smartcockpit.com/pdf/flig...erodynamics/28
In principle, I agree with one V1 per T/O.
But in extremis (which is the point of the discussion isn't it?), with a V1 split of ~30kts....
Reminds me of that Eddie Izard sketch, "Cake or Death"...
http://www.youtube.com/watch?v=BNjcuZ-LiSY
Of course, what complicates things is Vr...