The brittleness was not really that big a problem when I built my Strutter. Not all of the parts are clear, just the larger components. The real problem is that it does not help with getting that translucent effect. You end up having to do just about the same things that you would have done to a normal opaque wing. The problem is that the lack of ribs and spars will show through if you try to paint with translucent paints and internal structure in solid colours. The darker ribs will show as being clearly hollow and looking like tape strips rather than ribs. It just looks more wrong than the various techniques to fake translucency.