What tremolo design does Scandalli use for its Air3 LMMM?

[Beemer]

I have a 2020 Scandalli Air 3T 37/120 LMMM. This has a double cassotto and this might be a factor in my question.
To my ear the MMM and the Master registers have a slightly unsatisfactory sound.
I am curious about how Scandalli tune MMM. I expected the middle to be 440Hz with the lower and upper having equal Hz difference from the middle. Of course one I assume the xxM is the reeds outside the cassotto and this might be the reason the MMM sound is not as pleasant as I would wish. Of course i understand that musette tuning can also use asymmetric frequency either side of xMx.
Lastly I also have read that sometimes the 440Hz is not the middle but Mxx?
Hope someone with Scandalli experience can enlighten me.

 

[Ben-jammin]

Usually with the grill off you should be able to find the correct lever to operate the slider for each of the M sets. It’s pretty easy to get a tuner application for a phone that will read frequency and cents off of a standard for a played note. If you compare each of the reed sets you should be able to identify the current tuning for a particular note.