I once met someone who was consistently, 100% of the time, able to pick the correct answer in a blind test comparing puredata and max/msp's sine wave generator

I once met someone who was consistently, 100% of the time, able to pick the correct answer in a blind test comparing puredata and max/msp's sine wave generator (iirc one uses a wavetable and the other uses math.h sin) ; would be interesting to see how low would be the difference