Duane, WEDJ

WEDJ is right, but there can be more.

I think "toe-in" Ed did use to generate also two opposite forces, compensating each other, with the SFG’s so more drag.
You also get a better balance just like a profiled fin to prevent waggling of the tail.

I use "toe-in" when using winglets on tailless and canard models in stead of the fin and rudder.
When there is a little rotation on the vertical axle the SFG that’s most out of direction generates the correcting force.
I think "toe-out" is dangerous to generate drag so it is safe to make toe-in. (Toe out I cannot use on tailless and Canards)

About the weight distribution, the more the weight is concentrated in the centre of the plane the better it will be manouvrable with less forces of the “doors”, so less drag. Also the balances around the axles/axis are "faster".

My contribution, success
Cees