John,
Lack of basics is a killer isnt it?
Doesnt your specific aircraft type have VSTOP and VGO speeds rather than a single V1 speed more pertinent to airliners types?
I dont believe your on the spot assessment of excess runway available in case of lets say blown tires is the way forward to a sound decision,especially with your seemingly over confidence of your aircraft performance.
For your info,on my type,reduced thrust(assumed temp) is safer for both STOP and GO decision,so overrun events have none to do with these incidents..