I noticed that on my lathe the cross slide dial has 250 graduations for 0.250 inches. It actually removes .250" from the diameter. So the cross slide only moves .125". I have not measured it, but am pretty sure the compound slide is the same. I have heard that some lathes remove that amount from 1 side. Which is more common a cross slide like mine which moves half of the indicated amount, or a cross slide that moves exactly the amount indicated?