I do three strings at a time, or six at a time if I am doing the 12 string. This has little to do with the neck and everything to do with the ribbon transducer pickup. (I have the Baggs dual source pickups in both instruments. The manufacturer as well as Elderly Instruments recommend that you do it this way to keep the tension on that ribbon transducer.

As to methodology, I am with Bob Clayton, or at least close. I simply run the string through the post, keeping just about enough tenstion on the string to get it almost straight. At that tension, I will get just about the right amount of wrap to make it look professional as I bring it up to pitch.

All the best,

Mick