Hi,
I had a look at it again:
@ two cycles: You are correct, it´s doing two cycles. However, the indication on the PFD is not correct and this lead me thinking it´s not simulated correctly. If you press the ECU test button it should say "ECU A/B fail" and this message should dissapear after the second cycle (when the test is fully completed). Currently the fail message dissapears for a few secounds after the first cycle already and this lead me think that the test is completed.
@ ECU switching: no, I couldn´t see any RPM change. Apart from the RPM change I think a correct animation (sound, shaking of airplane) is very important, because in the real plane you don´t look at the RPM you simply "feel" the switching of the ECUs.
Regards,
Philipp