Having USB IN 1&2 directly send to XLR OUTPUTS 1&2 is a great feature for playing backing track. But if we also want to send the wet signal to the DAW (for looping), we have to use the MULTI OUT option in the output blocks. This option will send the wet signal to USB OUT 3&4 but also to both ouptuts: XLR 1&2 and TRS 1/4” 3&4. I use a PA system for backing tracks and a separate FRFR system for my guitar. Of course, I can use a splitter in the GRID to split the wet signal and manually send it to USB 3&4 and to the output (1&2 or 3&4) of my choice but this option limits a lot the use of the GRID. To avoid this, BOSS and FRACTAL gears use a parameter to mute (on/off) the wet signal to the output of your choice. Paired with the MULTI OUT option such a parameter would be very usefull to manage USB and Wet signals in the Quad Cortex outputs.