correction! SiC has 4 mute groups.
Important correction: the above review incorrectly states that there are no mute groups, so you have to switch to the second layer to mute the FX. Actually, all three versions of this console have 4 mute groups - easily assignable one of more of the FX returns in seconds! I've only played with a demo, but the interface really seems better than an LS9. I figured that correction deserved an extra star right? :)