Ok, I found what I believe is the ideal way to format large drives on windows for Cymatic recorders.
They even released a new version with settings optimized for Cymatic recorders.
I found this post in your support community explaining that a cluster size of 64K provides the best performance for all of your recorders.
I contacted their tech support noticing that 64K was not an option for all disks. They just released an update to enable 64K cluster size for any drive.
The app is very inexpensive and seems like the most effective way to erase drives after recording and optimize large size spinning disk drives for these recorders.