On the pronunciation errors in Dan Tianfang's storytelling.

There is nothing wrong with Choice, polyphony. The popular pronunciation is Zhai.

Force may be pronounced in the past, or it may be in tune with the rider behind.

As a folk art, storytelling is born out of the folk, so it will be colloquial. Especially the old gentleman is a spoken English learner, and he always has some characteristics in pronunciation, which may be wrong, but it sounds fuller. This is not only normal, but also very characteristic.