re post 49.
My recollection is that an inconfigured A/C will give a warning when the power levers are about one third open, generally before brake release.
If a rolling T.O. was intended full thrust was used much earlier in the Take-Off run and a warning would thus be early.....that used to be the procedure.
Either way it should not occasion the full-blown abort the poster indicates.
Is my memory wrong?