Originally Posted by
sheppey
...For my part, that experience made me have a long standing distrust of V1 as a stop/go decision point. I made a private promise to myself that in future I would make a decision to go on passing 15 knots below V1. My thinking was that the chances of a real V1 cocked up abort for whatever reason, was greater than the continue case. Fortunately I have long since retired knowing my theory will never be put to test.
The aeroplane I fly (777) calls V1 some knots below the bugged speed, which makes it ‘go minded’. That said, go/no-go discipline around V1 is, quite rightly, a very strong SOP as it is one of the few areas where critical thinking may not be possible due to time constraints and a rote/practiced response is required.
Modern performance software can show your margins for TO with AEO, OEI and reject so you can do a bit of what-if preparation for these kind of scenarios, should something rare/unusual come to pass. We don’t train it and we don’t check it, so up to you on the day if you think unorthodox action will save it.