My MMM tuning?

[Beemer]

My Scandalli Air has LMMM tuning. I can measure the A=440Hz frequency of one of the M reeds so that is 0 Cents. I can also measure the M reed outside the cassotto of A4 and it is is +15cents. What I cannot do is measure the frequency or cent deviation of the other M reed as there is no register that selects it alone.
I would expect that the remaining M would be different + or - Cents but I have no way of testing this, or is there a way?

 

[PhiliGol]

Hi Beemer
Yo should be able to measure the M- as well.
Simply remove the front grill, directly access the register shifters and enable the M- only.

 

[Beemer]

Hi Beemer
Yo should be able to measure the M- as well.
Simply remove the front grill, directly access the register shifters and enable the M- only.

Clever method that I would never have guessed!
Danke Schon