Hunter,
i´m a pro modelbuilder and had made under my client´s choice the 2 arrangements.
both worked ok, but the split is a pain to adjust.
if i build the third hot i would go for the single set up with 8411
the geometry of the split leads to misalignments at the end point sometimes, and the wing needs a BIG hole to accomodate both servos...
good luck / fred