Please forgive if this is redundant, I have looked but not found the answer I need.  I understand the differences between the MCU and the FW-1884 (for example).  Mic pres, audio passing through unit, etc.  What I want to know is, do the motorized faders actually move with (I'm assuming) the volume envelope (or whatever they are mapped to)?  Is the MCU implementation in the Tascam functional/adequate?  Thanks in advance for any help!