Most of the clubhead speed is provided by #2, #3 is mainly a delivery mechanism, which is why the emphasis is on #2. A #4 & #3 two barrel pattern isn't realistic, because if you load #4, the right elbow bends, cocking the left wrist, adding #2.
Choose between firing # 2 and #3 to effect Hinge selection?
ICT
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HP, grant me the serenity to accept what I cannot change, the courage to change what I can, and the wisdom to know the difference. Progress and not perfection is the goal every day!