Model No. 25001
A developed version of the S-joint, designed by Momentum engineering with Architecture 00:/. It uses a fully-functioning plywood connection employing a wedge, malleted into the connection to pull the parts tightly together. Paradoxically, overlapping the pieces on each fin (so pieces on one fin bridge over junctions on the other) would prevent this from work, so the S-joints on each fin are mirrored, but in the same location. Location and number of bolts are not yet known.