With Horizontal (Closing Only) and Vertical (Layback only) Hinging, both Club Face and Club Head rotate around the same Hinge Pin (both are Centerd Motions). Because Angled Hinging produces both Layback and Closing at the same time, it is an uncentered motion and has a built in Slice tendency. Simply close the Clubface at Impact Fix (more for longer clubs, less for shorter clubs) to avoid this and you will be a happy camper.