I have a simple question, I have completed a rough in for a body spray system. It shows that for the body sprays I need no more then 1/2" to 5/8" threaded nipple sticking out from the finished wall. My question is should I use a fitting that has a 1/2" inside thread and leave that behind the finished wall, much like a shower head fitting and then thread my pipe into that with the body spray, or stub out a threaded nipple to the measurement I mentioned, that is sweated on. I would have to be bang on my measurements using this approach. Is there a standard procedure for this. Thanks in advance