during play i still get both types, i.e. dwarven cuirass and worn dwemer cuirass. I also occasionally get two types of glass armor with different defense and money values.
Obviously i am doing something wrong, it must be load-order related? I'm using OOO and a bunch of other mods (can list if needed). I've already run BOSS. Also, and this is probably related, I am using Green Glass Retextured and the default Green Glass armor shows...
Any help is appreciated!

If you are not currently using Wrye Bash, you ought to be. Either way, fire it up, rebuild your Bashed Patch, and have a look in the "Tweak Names" section there. There is an option there that should fix your problem.

edit: Oh, for some reason I thought the naming issue was the thing. Very busy at the moment...

OOO adds worn and unfinished versions of all vanilla type armours so what your encountering isn't at all unusual.