How many people pinch turn with their roughing tool leading the finisher (in Z)? Does anybody even their tools evened out (in Z) and balance the cutting forces (ie; 180 deg cut per tool, equall chip load) or does the rougher have to lead? I am trying to grasp the concept of "pinch turning". We currently run with the rougher leading 0.03" in Z ahead of the finisher, where we have to pull the rougher out before any wall or X move. Not having much availible machine time to test this thought, who out there truely pinch turns? With the tools lined up in Z (+-.0005), wouldn't the inserts last longer, parts come out straighter, or rounder? Don't the Swiss machine (Star SV) come from the factory with the turret lined up with the gang post? Do we need to shim the rougher ahead, or will balancing the tools work?