If the work is being done with a CNC and the programing is good and complete it becomes as simple as 1, 2, 3. Measurements for tool setting have to be precise, but thats what the tool setter is for. It would become like any other machining done on a CNC controlled machine. Bring up the program, insert the tools in the appropriot station(s) and record the setting with the tool setter, make a visual 'dry run' on the computer screen, and away we go! Repeatable and accurate. Faster, too... Because you've calculated the spindle speed and feed rate and entered them into the program,,,,,, even if you slow the 'rapids' to 25% ("rapids' are the movements made at high speed when the tools are not engaged in the work). CNC machines aren't necessairly better, they're just more 'capable' than most mens' hands are. You turn control of the machine over to the computer, where as a manual machine is run by hands controlled by a brain,,,,,, and sometimes the two don't coordinate as we'd like them to! On the other hand,,,,, garbage in = garbage out. I cut mine on a manual machine with a reamer that has the body, neck, and throat on the same tool. I do, sometimes, use a throating reamer.