Thanks for your feedback, Dave!
By the way: If you combine a normal Mandolin voice on R1 with the MandolinTremolo voice on R2, you could try setting the EG ATTACK (TIME) parameter to a slightly higher value for the tremolo voice in "Voice Edit > Sound". The tremolo voice on R2 is then slightly delayed so that on short notes you actually only hear the voice of R1.
Best regards,
Chris