I agree that your Gallery Guide is really great, Carl!
I wonder if readers would find useful a trick that I learned here on this forum.
Someone asked how to duplicate a sim without its career, skills, and traits. (Were you the one who asked, Playalot?)
Someone else suggested (and I forgot who) to go into CAS, create a twin of the desired sim, then save the household to gallery.
The sim would have identical looks but would be totally "unplayed."
When starting a new game, we could download that household save and delete all the other sims except the unplayed duplicate.
I wish I could remember the title of that thread, but I can't.
And many apologies for the clunky explanation. *winces