Below is a video showing a setup suggested using the 135 acro frame:
And an updated video demonstrating the potential of using 1304 motors on high voltage 4s with the updated 135 acro V2 frame:
Carbon fiber Birch core material frames are supplied with a gloss surface on 1 side and a textured finish on the other. Either side may be used as the top surface. Since the core of this material is birch plywood the edges of the profiles are of a wood color. This can be easily colored as desired with a permanent marker.