I'd just put the CDP on repeat and run the thing 24/7 for a few days.
Yeah, you'll certainly hear things you never heard before with the ZOTL.
Try to get a chance to hear it with a really good non-portable CDP, too.
Wish I still had mine to listen to with the Audio Note stuff.
You'll definitely gain quite a bit by rolling the tubes, as well.
The ones that came with it are kinda dry and dead compared to