There was some buzz on here a while back about SP having trouble at the factory which is how the Kasai stuff came to be. Who knows. I know shit happens, but that hub shouldn’t have left the factory if there was one QA step performed on it.
I did ride it for about 100 miles and it never broke in. I started to wonder about it as it seemed like the bike was descending slower on my usual rides. I know there supposed to be notchy and all that, but a hard spin with my hand can only get the wheel rotating for about 3 seconds. I have an older SP and the using the same scientific test the wheel would spin for more than 10 seconds and then settle back into the notch between the magnet poles. The dynamo should also be silent for the most part, mine sounds like a star ratchet hub.