I just received my HS200.

My current switch setup is a simple single pole toggle.   Hot wire black to one side, black wire load on the other. I have neutral and ground in and my j-box.

Does it really not matter which black wire on HS200 goes to my line in and load out?   Intuitively, based on the wiring label on the back of the HS200 , this would be the case, but would like to make sure because this seems odd to me . 

thanks,