I'll be reverting back to the trapezoid frames. Found a reference that convinced me the other way:
Assumption: battle of hoth.
NOTE: easy to fool the eyes that it's a rectangular one.
Reference:
In the battle of Hoth, in some of the references (courtesy of @RoCKo) in at least 3 instances along with this one, i saw that again and again it's the trapezoid ones. Only logical that these were the frames, recycled from ANH. But this is a weak assumption. The 2nd reference though completely convinced that it is indeed the trapezoid one. What do you guys think?
Either way, i'm keeping both frames