Alright. So if it can do 205 or so it won't matter, as long as you don't fly that fast.
I'll probably fly a Spitfire MkI then in slow cruise instead of the Da-42, that will leave me below the limit there (of course it can go way faster, but I think it should be ok... right?)
As for the timing, I think since we know the target time, this issue is also minimized.
Thanks for your answers, I really appreciate the amount of time you invest in this!
Stefan