That's a nice looking setup. I've never done a trap out, but would like to give it a try at some point. I met a guy who gave a talk at our state beekeeper convention that uses the wire mesh funnel approach.
Trying to understand the two methods, as well as the advantages and disadvantages of each.
Is your setup basically an "add-on" to the hive with nothing restricting them from continuing to come and go from the original hive?
Does it actually ever remove all the bees from the tree and have the queen settle in to the box? Or, is the goal just to get it occupied with enough house bees and eggs to remove and have them make a queen?