I used a good trick (maybe from the art of wheelbuilding ebook) which is to put little flags of masking tape about 2/3 of the way along the spoke towards the nipple end (leave enough space to get the spoke key on and off the nipple easily). These let you can see when the spoke starts winding up. As the wheel gets up to tension I found the spoke wound up a bit first and then threaded into the nipple. The masking tape lets you see how much wind up you have and so you can loosen it off exactly the right amount each time. Probably too time consuming if you build lots of wheels and I'm sure people learn to get a feel for wind up, but a good trick for beginners.
I used a good trick (maybe from the art of wheelbuilding ebook) which is to put little flags of masking tape about 2/3 of the way along the spoke towards the nipple end (leave enough space to get the spoke key on and off the nipple easily). These let you can see when the spoke starts winding up. As the wheel gets up to tension I found the spoke wound up a bit first and then threaded into the nipple. The masking tape lets you see how much wind up you have and so you can loosen it off exactly the right amount each time. Probably too time consuming if you build lots of wheels and I'm sure people learn to get a feel for wind up, but a good trick for beginners.