Dual horizontal hinge does't have to be flippy at all. Its signature is a club face that closes, but where the effective loft to the ground stays the same. It doesn't have to be flippy and handsy, as you seem to believe. It can be a much more gradual process that is governed by shoulders and rotation in the upper arms.
You can basically achieve the same results with dual horizontal and angled hinge action, but the way you shape shots will be different.
There is a lot of good info here about the two and the differences, and if you google: "hinge action" in:lynnblakegolf.com I bet you will find a lot of great posts on this topic.
Dual horizontal hinge does't have to be flippy at all. Its signature is a club face that closes, but where the effective loft to the ground stays the same. .
Another area that would need to be clarified.
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