Polar742
All the responsibility none of the authority
That all depends GREATLY on the aircraft being flown. Some have VR and V2 relatively close that there is no way to properly get the aircraft off the ground without yanking it off at VR. Some aircraft climb at V2 at the same pitch attitude with all or OEI (the Dash 8) for example.
Just, for the love of Alla people, don't accept the VMC climb if your weight is above the max weight for your runway performance, it is illegal as hell.
To expound on that, if you have "improved climb" performance numbers, you will probably be past V2, even in an OEI situation.
With Vr moved closer to V2, it allows the aircraft to gain more energy for a OEI climb scenario. In this scenario, for example, you might have a V1 of 151 Vr of 162 and V2 of 167, where in a normal scenario for that weight you might see a V1 of 151, Vr of 156 and a V2 of 167.
No matter how you company manipulates the derived numbers (V1, Vr) V2 should be a constant at a given weight and flap setting.