Rotj armor/ SE Helmet sheen

TantivOdessa

New Hunter
What is the correct sheen for the ROTJ armor and SE Helmet? Flat or Satin?.
Does anyone have any good techniques to get the correct finish?
I have done some test pieces using tamiya flat clear, letting it cure for 4 or so days, then giving it a light rub with steel wool. It gives it a more natural sheen than satin finish.
In the reference photos the armor can appear to be either depending on the lighting and camera. I see many satin armors but they look shiny and plasticy in the pictures people post.
 
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