My thought on the hole is that it’s like all the strange Od1n tech they tested during the Olympics. This is the intro to the tech. The hole likely provides the best performance for that tech and so they went with it for this limited run. Future sticks, maybe whatever the top tier of the 3N will be called, will have the new shaft dimensions and a blade with a smaller, or no, hole. They’ll say it’s “powered by Slingtech”. It won’t be as effective as this ADV, but it will still be better than the regular blade.
I think this is the new feature for top tier Nexus sticks. Vapor has the elliptical taper. Supreme has the hexagonal taper. Nexus will have the asymmetric shaft and slingtech blade.