Hi Mutt,
I was just taking it to the theoretical limit of Vmcg+1kt. There must be occasions where Vmcg would be a lot closer than 36kts to a min V1. A very light BBJ for example.
If you compare my question to, reducing weight to achieve a contaminated RWY takeoff and thereby reducing V1 by 15 to 20 kts, you could reasonably expect, on long runways, that there is bags of extra performance available that would allow operators to reduce V1 by 10 to 20 kts lets say. Now this would provide a real safety benefit as you wouldnt get a really high energy RTO and crews are exposed to less time during which an RTO can be initiated.
2/3 of overruns are rejected unnecessarily in the first place! ref Boeing takeoff safety training guide.