How does this play fit your understanding of 3-4-4a-e for "a foul that causes the clock to stop immediately and the penalty for that foul is accepted" that can trigger a 10-sec subtraction?
Score A:14 B:17, 4th qtr, clock running, 2&10 at the B-40. Team A has no timeouts. Ball carrier A22 is stopped inbounds and short of the LTG and then a Team A player commits a dead ball personal foul or dead ball UNS. The Clock shows 0:38 when the clock is stopped. Ruling?
Stop "immediately" means that play does not continue because of the foul (unlike fouls in which play would continue, such as live-ball fouls such as holding, illegal formation, etc.). Any dead-ball foul, with the clock running, will qualify, as long as there is nothing else that happened before that foul, that caused the clock to stop. Just like a false start stops play (and the clock), so would a UNS/UNR, with the clock running. So, in the presented scenario, the dead-ball UNR/UNS, with the clock running, would qualify for a 10-second subtraction.
3/? (after a 15-yard/1/2 distance penalty on A), 0:28 (4), ready (25). If UNS, that's one on that player's DQ counter. Team B COULD accept the distance penalty, but decline the 10SS. Or, they could decline the distance penalty, which would automatically decline the 10SS (by rule). But, chances are, B will accept both. But always get the HC's decision.