My traps with holes drilled through the bottom boards keep getting clogged. Mostly it's cardboard starter strips the bees are removing :( but there's also wax, pollen, bee legs etc.
Took some advice from the forum and packed down all the hives with spare room, took boxes off some. It has already made a huge difference, but the traps are making a difference too.
Let us know how they do for you, Steve.