jammed stab
they won't answer. they cannot fathom the ideas expressed here. Your question is quite valid.
Reverse can be used in any way when you need it and CAN MAINTAIN CONTROL>
I have never said use assymetric reverse and LOSE CONTROL.
And if you do lose one engine before V1 or at V1 and elect to reject the takeoff, you deploy both reversers, as they will create drag at the least and can attenuate forward idle. But if you can MAINTAIN control you can use remaining reverse.