Out of interest LOMCEVAK, do you have any idea why the part 25 standards (and presumably 00-970) prohibit use of nosewheel steering in establishing Vmcg? I'd guess it's inherent conservatism, but I don't think I've ever seen any justification for it?
NWS isn't taken credit for because the nosewheel may not be on the ground!
Consider a case where V1=Vr and V1 is at the limit for Vmcg.
If my Vmcg is predictaed on NWS use, what happens if I have an engine fail at V1+1kt? I've already started to rotate, but I'm still "on the runway" for another couple of seconds at least. But I don't have the use of NWS, because the nosewheel isn't in contact. So I'm actually below the "real" Vmcg for the configuration I'm in, even though I'm above the "cert" Vmcg.
Safest to assume the nosewheel won't be there to assist me.
(Of course, one could also ask whether a Vmcg determined at near-zero AoA is valid for the case where AoA is close to the lift-off attitude. Perhaps best not to pursue that line of thought too far ....)