The lathe seems to be cutting radius and not diameter.
i.e when drilling a hole the X value on the monitor is not displaying zero, its displaying an absolute value of X43.435. This figure is half the X reference position which is 86.870, this is the value of parameter 708. Currently I'm having to put a value of X43.435 into a program to drill a hole.
Also any adjustments in the X wear offset is half. i.e if I'm reducing the diameter by 0.1mm I'm entering 0.05mm into the wear offset..

Any help on the adjusting the correct parameter/diagnostic would be great.

Thanks