If you improve most armor it will not replicate it, they made it so you could still replicate the Ancient Falmer Armor, even if it was improved, you will just lose your improvements. Some armor like the Blades Armor it cannot replicate others I think it could not replicate were Guild Masters, Nightingale, shrouded armor (all of them I think) and Cicero's outfit. I never tried them all so there are probably a lot of others the mannequins will not duplicate even though they are not improved.
So you are saying unreplicable items, like thieves guild armor may be used to ''wash'' an armor manekin display. because it will stop the replicating bug ?
I did notice the thieves guild armor didn't get replicated.
Myself I used an hotfix mod to reset the armor, then went back to no mods
I don't change idea that often, but I came up with an housestyle idea
heljarchen (2 manikins) elven theme (elven/glass)
solitude (2 manikins) imperial theme
markath (1 manikin) dwemer theme
riften (2 manikin) thieves theme (thieves guild, nightingale)
windhelm (3 manikins) stormcloak theme
windstad (3 maniquins) maybe reserved for high end (dragon stuff and daedric)
lakeview (7 maniquins) mostly nordic heavy mix, but also ebony, orcish, forsworn
I got no space for my light armor sadly except scaled armor
so fur/hide/leather/vampire/dawnguard ... are just displayed on top of chests ...
It's a bit sad
I hope the dragonborn dlc got a massive jarl castle in it for the player
you know ... one of those 50 maniquins and 100 weponrack with 50 bookshelves ... kind of thing
where you can showcase every single city guard armor
