Almost all hydraulic and flat tappet cams that are cast cores ( such as yours) are made by the same company ( or two). The cam you have is the same as you might see from a shelf Comp Cams or any of the cast camshafts. The cam core company supplies cores, then others may grind, tap, do the bolt holes etc. CWC is just the casting. Most of the Comp Cam hydraulic and flat tappet shelf type grinds, arent done in house. The other mentioned companies actually do all the work. In the case of a full on custom, then Comp ( and the others ) MAY grind their own.