Anyone got one of these?

I have one West beetle trap. I gave it a whirl just for fun. It collected lots of Beetles, but was a huge drag in terms of removing a cleaning it out, putting it back in etc. etc. this seems to potentially solve the problem. My only concern is that I thought the bees basically chased the beetles through the slats, it is a screen between the slats and the bees, will they really be able to chase the beetles through them?

Also does anyone know if anyone's making the West hive beetle trap in an eight frame size? Have had some recent trouble with my shoulder and eight frame mediums are looking more and more attractive everyday.