Yep
valid points on the top bridle geometry relation to force, drag, actuation, stability…
I also like the idea of a cam on the lower sider (Upwind, high tension, normal bridle side) being used to actuate the cyclic bridling changes required for cyclic banking (roll) control.
I worry though that the cam would have to be quite a large component and require vanes and mass to hold it’s position against the tensions of the active bridle set.
That’s why I chickened out and decided to try topside