Hi Chris,
Interesting modifications, congratulations to your achievement! Are the gelcoat-discolorations on the tail caused by the heat of the exhaust, or is this a result of fuel contamination? I remember that in some turbine powered gliders, the engines are slightly angled against the fuselage centerline in order to keep the heat away from the tail. If I am not mistaken, this was the case with the LS4 jet retrofit offered by M&D (
https://md-flugzeugbau.de/en/areas-o...rieb-mdtj-42/).
Christoph