Originally Posted by
Trakhak
Rebuilding with a standard cross pattern might be risky. Back when Campagnolo offered a lifetime warranty on their components, they stipulated that hubs that showed evidence of having originally been built with one spoke pattern and then rebuilt with another (e.g., tensioning spokes rerouted to be pulling spokes) would not be covered under warranty.
I am not convinced there is a metallurgical justification for such a statement. Marketing and/or warranty positioning? Maybe. Document it and then you are covered. IIRC the reason you want to lace it the same way is to prevent spoke breakage as a result of deformed AL impinging on a spoke, causing a stress riser.