Armourall,
I don't think so. Since horizontal hinging is "closing only" there is NO layback. Horizontal hinging is horizontal hinging. Angled hinging moves closer to horizontal hinging when executed on a flatter plane and it moves closer to verticle hinging when executed on a steper plane, but if you have no layback (horizontal hinging) then this doesn't apply.
Hardy's "one plane" swing really isn't one plane, but it is a swing. A swinger will tend to me more rotary because the pivot pull is transporting the power, not the right arm thrust.
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