Not following. If the exposed thread is 1/2" and you are turning the nut down into the wheel, clearly MORE than 1/2" of thread is being consumed by the nut. If you need a minimum of the diameter of the stud (1/2") of engagement, you have MORE than 1/2" happening. FORGET what the Hall wheel turns are. Gary's wheel has a thinner center, that's all - irrelevant data.
Changing all the studs is a BIG job. take the entire real suspension off.
If you have more than 1/2 an inch of stud being consumed when you thread the nut on which you have to have, I would run them. Remember, there is zero value in having a stud longer than what the nut needs.
I also do not believe Roin purposely made these such that the studs needs to be replaced. He has sold plenty of the wheels.
That is what I would do.