You know from your own testing that whatever SN values you start with are what the scene initializes to. If you're not thinking and spin the superknob to some value you don't want (like min) before recording then that'll be saved. Those scenes were recorded (before the scene existed at all) with your Super Knob set at the minimum value. Every scene has an initialized value "stuck in" to the 1st measure. You don't have to move Super Knob during the recording for it to record the value. It records it anyhow. That places the burden on you to make sure you keep track of the position before recording your initial take or else patch up the problem later using the steps I gave.

It's easier to initialize from the start - less steps.

It's likely that your attempts to change the initialized value failed because you weren't doing the right things.

Even though we cannot granularly edit events - showing that clearing SN events works gives you a clue that there must be a SN event in all scenes - even those you don't touch superknob during the recording.

That is exactly, what I mean with "justifying sentences". Yamaha is perfect ... the fault is the person infront of it.

I'm not justifying anything - I think it's an imperfect system that has a big gap in the "elegance" department.

However, it's true that you were beating your head against the wall and getting nowhere and hopefully now know how to remedy that for this particular task.

By pattern scene I mean use of "scene" in the Pattern area. There is another "Scene" area that predated patterns which is a different screen. I add "pattern" to help identify which sets of screens one should be using. The other pre-pattern Scene settings also deal with Super Knob - so it's important to be clear.