Wind down
Wind down - 'cos that really shows the true vector diagram. Yes it might entail a wee bit of shuffling at the end to get the drift/hdg correct.
I was taught this method 30 years ago at 6FTS and it works. I understand the wind-up method and have helped "mates" with it. When the answer in the book does not agree with wind-up, I can by using wind-down get the right answer.
IF you understand the vectors - you won't go too far wrong in real life.
Horses for courses, really.