I have a fishing buddy who has a Cookshack. He is tired of tasting my yummy cold smoked fish, etc and wants to do his own. Doesn't seem to know much about if Cookshack has a cold smoking attachment, etc. I see an item on Cookshack's website called a "cold smoke baffle". Does anyone have one of these and can tell me how it works? Their website doesn't provide a bunch of info on this.