I purchased these as a replacement of the Daybreak flywheels included in the Stryfe mod kit. I found that the sharp inner corners of the Daybreak wheels badly tore up my darts after as little as one time through. These are much less rough on the darts even though they are a higher crush. It will however, add ~20 fps as compared to the Daybreaks at the same cage spacing. So keep that in mind if your club has an fps limit for events.
