I have problems with refresh rate (scroling and general display update with dual display) when using the MCU+extender with my Nucleus (iP Midi) in somewhat big projects (30+ tracks with tempo changes).
 
I also have crashes related to asio (madixtreme) but only when using the mcu + xtender
 
What's the deal? Anyone using a 16 channels control surface?
 
There's definitely something that don't play nice in my setup....

I've got an MCU and two extenders.  I've got a few legacy projects that I can run on SPlat but they don't have as many tracks as yours.  All my big projects are in Pro Tools at the moment.

ok I see thanks for your input
 
as strange as it seem I like sonar so much that I think that this is the controller that will go.... anyone interested? ;)