The Glasgow University research hasn't been very well regarded by the industry and has had little impact on modern designs. Glasgow told us that the way to get stability was by having the thrustline close to the vertical CG, and that horizontal stabilisers have little effect on stability. Most modern factory-built gyroplanes have a larger thrust line / CG offset than the one recommended by Glasgow and have great big horizontal stabilisers .....
I'm guessing that only one of us read those papers?
G