Wow! Thats very interesting, thanks!
My own investigation of the aircraft in sim reveals the TO-1 setting shows as 17000 lbs thrust (annotated on the MCDU as 17K0).
I set the aircraft up for a real world flight, London City to Dublin. This gave a ZFW of 36164 kg and a GW of 40192. So slightly above what you've got in your calculations. Maybe I'm a little generous with the reserve fuel, as this only represents 50 pax and 30% cargo in the load manager! Flaps 4, V1 was 113, VR 116 and V2 122.
OAT 15C, QNH 1013. I adjusted the takeoff temp in the MCDU to 30C. This allows 95.1% N1.
On RWY 09, rejecting takeoff immediately before V1 and applying full reverse thrust allowed me to stop with maybe 15m to spare. The same relying solely on the brakes saw me take a dip in the thames! I didn't have time to test RWY 27 tonight.
Think I need to lower my takeoff weights - hand luggage only, people! And no fatties!