i took out a replay from my autosave folder to check out what avenue explained me and its being logical so far, but heres my doubt

Since lenshu3ng dq timeout is set to 20, the timer has a multiple of 20 going from 450 to 430, 410, 390, 370, and in the case of this replay the DQ occurred in 351 and not 350 which mathematically should be the correct frame having in mind what avenue just explained.

Notice how in the replay i touched the ground with my elbow at frame 370 (timer should be reset by now, having 20 frames free to touch the ground freely) to therefore recover and touch again in frame 354 i proceed to dq in frame 351 which is one frame far from the timer.

why it happened if the margin is 20 and not 19?