A: Looser fins help the MirageDrive operate more easily. This is seen as the best setting for a users first experience with the MirageDrive. Additional tension can be added by the user to tune-in their desired resistance or cadence. The looser setting is both easier and faster in most situations. The ends of the thread are flattened and will cause friction to keep the nuts from backing off the threads. Loosen the nut until you reach this location and feel resistance, as demonstrated in the image below.