As highlighted above, you need to exercise your airmanship.
I use to operate a Global from a 15000ft runway. You could take-off at maum (100,000lbs), positive rate, gear up, climb to 100ft, change your mind, gear down, Flap 30, land ahead stopping before the end. Yet, on the initial take-off run at V1 and above you are mandated to go - and would probably be criticised for aborting above it. You have to know your perf and understand exactly what and why it is telling you!