I finished up my first batch of swarm traps for this year. I think the consensus was that the boxes I used that year were too small. They were 5 frame nuc boxes. This year I used a calculator and built several 8 frame deep boxes with extra space that are ~40L and some 5 frame deeps that are ~35L.
As I was putting frames in to test fit everything I wondered, "Do I have to tie up all these frames to fill the boxes or could I use less?" For example, could I put 3 frames into a 5-deep and 5 frames into an 8-deep? I've now spread that same 8 frames over 2 boxes instead of having them all in one.
I cannot see any of the traps going more than a few days, a week at longest, until they are checked. All of the locations are very accessible on my normal day-to-day travels.