All together, MISO signal flow looks like this:
I N 1
O U T1
SCALE
IN VERT
OFFSET
IN 2
O U T2
SCALE
IN VERT
OFFSET
IN A
O UTA
SCALE
IN VERT
OFFSET
IN B
O UTB
SCALE
IN VERT
OFFSET
VC
CR O S S FA DE R O UT
CR OSSFAD E
M IX 1+ 2
M I X
M I X
MI X A +B
CR OSSFADE R