I use wind up because the original Jeppeson Flight computer I used when I did my PPL in 1974 had instructions that said do it that way. Ergo it was "designed" to be done that way.
If you want the sum of 3 and 4 then 3+4 gives you exactly the same answer as 4+3, one isn't "right" and the other "wrong".
The E6B is simply a handy way of doing something you would otherwise do on a map, ask any navigator who's crossed the channel by boat and plotted the tidal vectors. If you're going from A to B you can draw the drift in one direction at the start point or the opposite direction at the destination in order to arrive at the course to be steered. They both achieve the same result. Try it!
Not at all sure which method
Philip Dalton advocated when he invented it.