@d-healey I notice it quite a bit with synthesised samples too, hence my interest, even more annoying is the tendency for crossfaded sounds to have volume dip between layers. Smoothing helps a bit (smoothed parameter in low pass mode in particular) but it's always there to some extent.
It's a shame physical modelling (of real instruments) never really fulfilled it's promise, but then many of us might not be here, or maybe we'd be talking about HIPME.