Thanks so much. I just use Estlcam for shallow inlays. Say, I want a 1mm inlay: I cut the positive with a 1mm depth, then I mirror it and cut the inlay with the same settings, so 1mm depths, but add a starting depth of 0.8mm below the surface of the wood (so you cut 1.8mm deep). This gives you an inlay that has 0.2mm air at the bottom for glue. You can’t just zero it on the workpiece and cut 1.8mm deep. That would create an inlay that doesn’t fit.
The problem is that if you go deeper, like 2mm, the starting depth would be 1.8mm below the surface plus the 2mm you are cutting, that means it has to chew through 3.8mm hardwood in one go. What you could do then is to just run the program once, then a second time with the starting depth of by just setting 0 1.8mm lower.
I hope that makes sense. For even deeper inlays I use F-engrave for the inlay. Maybe the program you are using has got a good inlay setting, V-carve does not. We discussed this in the other thread before (V-Carve Inlay Using Estlcam (But Technique Can Be Used With Any CAM Software)).