regarding the flight with the OS 91 FX we did not take any picture as we just did build the engine inverted, fixed a Genesis Mini pipe on it.
Results were quite good, not as good as witht the YS 91 as the two stroke engine has less torque than the 4-stroke one. However the combination Synergy with OS 91 FX is a combination that we can recommend without any reservation.

Now we just start with the people from WESTON UK to make a special "inside" pipe for the plane, with a special swan neck manifold and a pipe that will have the outlet in the center showing directly down. As soon as available will take pictures.
Alvin