On my last flight I noticed that when N1 transitions from 96.9 to 97.0, the gauge will momentarily display 96.0 and then jump to 97.0. Probably just a small integer rounding error.Cheers Mark

I've noticed this on speed and atitude tapes too, or anyplace else in msfs that is displaying incremental digital data. Not sure if that is the pmdg code or the msfs interface doing this. However, the effect is transitory and quick and doesn't seem to cause a problem, hopefully.