I have never used bucket traps, but I really wonder why anyone who wants to do some swarm trapping would invest anything in any kind of trap without frames. Maybe in a pinch, but if you are planning ahead, why not just use use/build wooden traps with frames? They’ll last for decades and save you all the time and effort of a cutout, and you won’t set the bees back either.
Wood traps are easy to build, and I got all of the wood for my 22 traps free - discarded as scrap.
Wood traps are easy to build, and I got all of the wood for my 22 traps free - discarded as scrap.