Reply to If In-port/out-port are different will same Ch in matter?

Pretty sure I'm in the clear but I'm believeing about picking up a second controller and I want to confirm before I purchase. I have a Stanton scs3 running darouter utilizing ch's 1-11 with in/out pointing at darouter. If I add a Numark Total Control with in/outs pointing at it the fact they're both sending midi messages on the sans channel won't affect the opposites tsi cause it won't "hear" it correct?

Thanks