Hi - This is not my area of expertise, but I want to keep the thread alive.
First off - lets say it is tool 1 and it has +0.002 wear offset. The code should call for T0101 - which includes the wear offset.
So if you set up via MDI T1 or T01 it will not include the wear offset amount. You need to set up with T0101 - when you do that the DRO changes by the offset amount.
You may know that but just checking and trying to kick the thread along.
Cheers Cliff