On the old VF2 (1995) I'd set all tool lengths to a 100mm gauge block on the table and measured the fixture or workpiece offset (G54 Z) from that negative if the part was lower and positive if higher. It was just simple and consistent since all tools referenced the same 100mm gauge. Though on the new VF2 (2018), using tool offset measure behaves different, it factors in the current G54 Z value when setting the tool length. for example, if G54 Z is -30 and machine Z is -360, the measured tool offset becomes -330, this means the control subtracts G54 Z from the machine position when applying the offset. Any thoughts? Am I doing things right?