(A, A') The model allowed motors to stretch as far as necessary in order to stay attached to the filament pair; however, in vivo, it is more likely that the motor is limited in its stretch. We restricted the distance the motors can stretch which reduced the order of the system. (B, B') We assumed filaments had fixed lengths of one for our Monte Carlo simulations. We introduced complexity by varying the fixed length, which resulted in a decrease in order for a shortened filament length. To increase complexity even further, we considered filaments with random lengths that had an average length of one and found both the fixed length of one and random lengths with average length one, had the same order.