All good/true. Thank you for your update.

My typical sessions involve 100-200 stacks
(each with ~100 images)
thus my need for an automated workflow as shown. it goes pretty fast...

take care
will

Below is a Windows cmd language .bat script which we're sharing with everyone.

Because we do product shoots that require custom and unusual setups, all aspects of creating a stack of consecutive images are unique and are best separated by hand-over-lens black/blank separator images. (e.g., time ...