I then started on wiring. I introduced the harness to the sub panel for the first time and got a good look at the real “task at hand”. I put the VPX Pro back into place to understand how the harness routing would be effected. I did change the way I was going to originally route the harness since it quickly appeared that I could not route all the cable thru an opening I had originally thought would work. It would have worked if I had attached the harness to the back of the trays before installing them but either way the over goal was still captured. Many hours spent on basic harness routing and planning.