It’s not our rule, it is Fujikura’s rule. The Ventus, and other specific Fujikura shafts can only be shipped installed in a club or with an adaptor installed on the shaft, any adaptor (the adaptor is free of charge). Taylor Made, Callaway, Titleist, whatever adaptor you need. Titleist will not sell us their original adaptor (which makes no sense as well), so the only one we can offer is the non-adjustable aftermarket version. Not sure their reasons, but that is the way it is for now. As far as quality control, adaptors can be removed without compromise to the shaft if you have the right tools and skill. Not ideal to have to do it I understand, but it can be done. That being said, I do understand the concern.