So phase lag, not gyroscopic precession? (Another difference I’m trying to better understand.)
Yes, as AC says above - phase lag
You can perform a very good demonstration of inflow roll and flapback - start in about a 10' hover into wind if there is any (best done with zero or very light wind) and with the AP disengaged if you have one.
Maintaining the collective position, initiate the forward movement with a small amount of cyclic and hold it. The aircraft will start to move forward and descend slightly - then in reasonably quick succession the nose will pitch up and the aircraft will roll towards the advancing side of the disc.
Once your students understand what the aircraft wants to do, they will better counteract it by maintaining the disc attitude during the transition.