One thing I’ve seen kicking around is that MCAS alternates input between the left FCC and right FCC, which might help understand why the JT43 only had to fight

One thing I’ve seen kicking around is that MCAS alternates input between the left FCC and right FCC, which might help understand why the JT43 only had to fight the stick shaker the whole flight (!) but JT610 had the automated trim input as well.