Hi Phillip
I’ve tested it out and left all the faders down on both the software and controller. But when restarted the software faders where all back up.
Looking at https://www.native-instruments.com/en/support/knowledge-base/show/698/how-to-use-the-controller-manager-in-traktor/ it looks like you can change software takeover..though it will take a little reading to understand what needs to be done to change it.