So after installing a rear onyx fatbike hub, all I can say is, I don't even know it is there, which is a good thing.
Instant engagement, smooth, quiet, and nor a issue. I love the fact of during technical riding, a quarter backpedal, then back on the downstroke, instant engagement. No more pedal strikes trying to climb while running out of power but only needing a half stroke because of terrain. Winters coming, we will see if this changes with -30c conditions, but I highly doubt it, it's made in Minnesota.