Got a swarm call from the City of Knoxville this morning, swarm was on a branch that had been cut down. Medium sized swarm, easiest swarm call ever. All I had to do was pick up the branch with the swarm on it and shake it in the box. The rest filed in within about 5-10 minutes. Probably left fewer than 10 bees behind and was done and out of there in less than 15 mins. I love these kinda calls... actually, I love swarm calls period... haven't gotten enough of them yet this year.