I will concur the the desire to have a better alignment between the units used for the variable settings wizard and the slicer. Every time I have needed to use variable layers I have had to iterate at least four times.
- slice with a single process and then step through slices to find the target layer
- use variable settings wizard to change settings at the target height corresponding to the target layer
- slice again and check the desired change occurs at the correct layer (always seems to be off by at least one layer)
- go back, delete all of teh wizard generated processes, reset the main process, and re-run the wizard with adjustments to the height values
- slice again and verify