Wind up achieves the same results for the same problem as wind down, just as accurately but without the stuffing around adjusting things that wind down requires.
It's also quite easy to learn to use wind down for problems where wind down is more suited and then choose whichever method fits best.
Alternatively, get a CR type (my preference) but be warned that very few UK people seem to know anything about them. Shame really since they make a number of the ATPL questions much easier.