I'm going to ask another Audyssey question if that's ok? If not, please tell me where I should post it instead!
I managed to rerun it last night, used slightly wider mic positions and it has worked better (sounds better). The app still shows barely any change, which I didn't understand, so I tried switching Audyssey off and back on. This proved that it has made a massive change, so it is working.
Then, I had the idea to use the amps graph views to see the changes... this works and shows all the corrections.
However, I have a correction issue with the surrounds. The Q300s are almost corner placed, which is not good and have quite a lot of sofa in front (not directly) of them, also not good.
This means that they have mega bass, and Audyssey (below around 90Hz down to 30Hz) needs to peak correction to -9dB. Then they have high frequency problems and the correction goes up to +10dB. But it meets a ceiling, i.e. it needs to correct it more but it can't. Is this the maximum correction range of Audyssey? What can I do to enable it to add more correction dB to the high frequencies as it definitely needs more please?
Any ideas would be welcome. And replacing the surround speakers or moving them is not an option I'm afraid.