Hi Capn Bloggs,
I've never had a problem working out what the aircraft is "doing" during a reject or anything else, for that matter. Have you?
You must be a genius, because most crews find keeping the "aircraft" (the sim) straight during a normal landing more difficult than real life. Once a heading oscillation starts, it is very difficult to damp out during braking because of the lack of sim fidelity caused by the lack of motion cues (reasons given above).
During an RTO, you will probably build a heading oscillation in an attempt to keep it within the width of the runway. If keeping your feet on the brake pedals during all normal take offs works for you - then carry on.
I'm simply trying to point out that "fixing" a sim fidelity RTO problem by keeping your feet on the brake pedals during the acceleration phase, might not be the best solution for all normal crews in normal everyday operations. See post #1.