This is an important point. The direction of the fibers makes a big difference. The basic method of strengthening carbon fiber weave (which is weaved at 90degre

This is an important point. The direction of the fibers makes a big difference. The basic method of strengthening carbon fiber weave (which is weaved at 90degree angles) is to alternate the layers so that they are 45 degrees apart, if laying up a normal flat part. When I created a longboard (similar to Boosted Boards in length) it was still very flexible, even with this method. The small part shown in the video is hard to bend, but so would a wooden part that small.