HI there, sorry, i seemed to have missed this post. Im pretty sure i used the 6.4 plastruct on the wing edges. I made the wings in a slightly different format with the large single stainless sheet as the central layer (just to keep everything super straight). I dont think they look any different to the original versions, maybe a little more symmetrical than normal ;-). The koolshade is indeed mirrored across the wings on mine. If you follow the wingstars as a guide, you may find there is a 2mm or so, discrepancy which will follow into the koolshade templates and make them different. I would go for symmetry all day, just to make it easier