One thing about the carbon suits that has come to lite lately is that the carbon does soak up all odors, not just human odors! So, to spray down with a scent killer/cover scent would effectively kill the effectiveness of the carbon. Same thing with scent wafers stored with the carbon. So, use one or the other! I say the heck with carbon clothing, like ya said, with no dryer handy in the hills, just how long will the carbon last?
Play the wind, and hunt!