V1-VR, a scary place to have a problem...if that number could be shrunk down a little, less exposure, somehow with more thrust, or changing flap positions, ect I might feel a little better trying to 'find' VR if I am committed after V1.
Personally i like my V1 cuts (four times a year in the simulator) to happen quite a while before Vr. Why? It is much easier to operate the airplane that way. Better controllability, perfect reference to runway centreline even in LVP, makes any kind of engine failure even more a non-issue than it allready is.