2 Stage cuts question

Hey guys, I have yet to try the 2 stage cut feature yet. A little nervous to do so, but I have a project planned that could utilize that feature. My one main question is how do I home the Z axis for both so I can get a smooth transition between the 2 bits? that is my main concern. At the moment I just eyeball when it looks like the tip touches the material, just worried my eyeballs will fail me haha.

Thanks again guys!

Do a search for “Z-zero” on this forum and you’ll learn a lot about how to automate the process.