They did this on the local news one night in Minneapolis during deer season. A female reporter showered using the scent removing soap and sprayed herself down, then donned several different carbon suits made by different manufacturers in several tests. In each test, she hid in on of many boxes throughout and obstacle course and in each instance the dog found her almost immediately.

But they even admitted a trained dog is not the same as a deer. So they did treestand tests in the woods in high traffic deer areas. Those were inconclusive. Some spotted her. Some didn't. And who knows for sure why in each situation.

In the end, they didn't prove anything. And I think it will be hard for either side to conclusively prove these suits will work or won't work. I think it all depends on the situation. In the meantime, I'm not going to criticize manufacturers for making them or hunters for using them. If it boosts your confidence, more power to you.