In the Nose Work Challenges 1 class I’m taking from Fenzi Dog Sports Academy we’re doing some fun exercises with extreme aged hides-hides aged 24 or more hours. This presents a challege due to the scent diffusing into the room. I set up the next hide in my jewelry making room. I have one hide each of birch and anise. I’ve positioned them so they will definitely create a converging odor puzzle for Jack.
Besides aging for 24+ hours, what will make this hide situation challenging for Jack is the heat from the sun coming in the window. That will activate the odor-it will rise in the heat from the window. There is also an HVAC vent on the floor just left of the anise hide under the jeweler’s bench. 
Since it’s summer, cool air is coming from the vent. I’m very interested to see what happens to odor.
Anyway, tomorrow afternoon, we’ll see how Jack does in this search. I hope I remember to video.
Colletts on the Move 