Just a recommendation that I think others would enjoy.
I have recently crate a double sided project where I used 1/2 the material depth to create a Snowflake and on the reverse side using the other 1/2 of the material I carved Depth from 1/2 inch to 3/4 inch. This required my to update the material setting and then go through all the tool paths to update them to half of the 3/4 inch materials.
If you are running v7 I think you can do that with the t/2. When creating the pocket you have your start depth say at zero. Then in max depth enter “t/2”. That will use your stock depth and divide it by two and give you half the thickness of your material. So using this variable you must be exact with your stock thickness or you might get an onion skin between the two halves.
Edit: Removed v6 per Will Adams. I am on CC v724 Beta and have lost track of just how many versions of v7 I have been on.