Everyone's entitled to their opinion, John, but the Voodoo is not the Half Fast! The more modern stabilator-type planes fly circles around the older flying wing types like Half Fast, Wow, T Square, etc. They represented a quantum leap in combat design and performance.
Sure the flying wings (deltas, etc.) can be trimmed to not stagger in maneuvers, but only by sacrificing square corners and tight turns. My 1/2A (3/4A, .061) Fierce Arrow type flies fine as long as you don't push it, and keep things big and smooth. To avoid stalling in turns, it either has to be trimmed noseheavy or employ very limited control surface movement. Either approach makes tight turning and square corners sort of impossible. I enjoy flying it and am glad I built it, but recognize its limitations. It ain't a great stunt ship and can never be.
Now, move the tail off the TE of the wing, whether it be with booms and stabilator, or fuselage and stab/elevator, and you have a different creature. Now you can trim for those sqaure corners/tight loops, whether it be fast (combat) or slow (stunt), without the "staggers". That's what they did with the Voodoo type planes, and it made a major difference in how you trimmed and the performance you could expect. A HalfFast couldn't compete with a Voodoo, whether in the combat circle or fast-stunt either one.
Flying wings are fun, simple in design and build, have a distinctive look, make good sport planes, trainers, etc.; just have limitations inherent in the design when it comes to severe maneuvering like the Pattern requires.
That's my opinion and I'm stuck with it--I mean sticking with it, or something...