I have a few of those too! I think they are better than the boost 15mm chassis. It’s not the same lower as the 2015 fork, in case anyone was wondering. Did you order it from Fox? Friends tell me those are hard to find/purchase. Also my 20mm hubs with disc a spacer work on the Ohlins DC fork and the Fox 49. Another issue, is that most boost 15mm hubs are 28 spoke and straight pull which I’d like to stay away from. Like this I can still use my DT 240 Hubs from 10 years ago.