Can somebody explain to me how to do a cross fade with the Helix Stadium merge mixer? It looks to me like it's using a taper on the levels where half way between 0 dB and -60 dB is -30 dB. Is there a way to change that taper? As it is, when I have an expression pedal in use to control the cross fade, the output of the merge block output drops to silence at the mid way point of the pedal travel.