[FXB78]

What is confusing me a little is 896x504 is surely best but when you watch with the 720x576 youview streams I see it as SD 576 yet the same program with the 896x504 (540?) mobile streams give me SD 540. I would have thought SD 576 was better than SD 540 but that's contradictory. 

Well you could also argue that 896>720 so those would be superior But the resolution in this instance is of little relevance really, the encoded bitrate of the 'mobile' streams is likely to be higher, which is why you see a cleaner image with less artifacts than that of the 'youview' feeds.

I think if we could default to 'youview' and have an option to use 'mobile' in settings it would give users a choice depending on their preference.

Having had a closer look at this tonight I really don't think there is a significant difference between the two and neither are as good as this add-on was before, when I assume it used streams from the website. The stream always used to start a little fuzzy then kick in to something very watchable. Now it starts fuzzy and stays fuzzy. Maybe I've got used to HD as a bare minimum now and watch too much 4K.

I definitely get issues with the mobile streams as it can take numerous attempts to get a stream to load, although eventually it always does. Subtitles do not work either when using the mobile streams. 

The mobile streams are the same as they were on the old addon, 896x504 50 fps, it's just your eyes that are deceiving you

Personally I can't see the point of offering the mobile stream as an option unless it's something simple to do.

Maybe not for your use case, but for others who don't need subtitles & are not using any DNS trickery the option for better quality feeds is perfectly valid. It would only be a toggle in the settings so not any major reworking of the code.