I have a Daewoo Puma 350. I'm attempting to put a 4.125" 3 national acme thread on. I had two different tooling vendors send me two different theories on how much to take a pass etc. They both ended up within .002 of each other. I ran 2 test pieces but the threads don't look deep enough and they're burred up pretty good? We don't have anything to check it just yet (ordered). I took 25 passes (G32) and ended up with the last pass being 3.948". SHould this be deeper. An engineer here says the last pass should be around 3.783"? I'm confused. Any help would be appreciated!