Or do a push in cage. That's probably the most reliable.
Is this what you mean by a push in cage?
I tried a couple of these last year, and had really mixed results. It seemed that the bees would chew thru the comb rather quickly around the edges and release the queen. Of the 3 I tried, I think 2 where released with 24 hrs.
Have you had any luck with them? Maybe I'm missing something here. I really like the idea of giving her more room and the ability to start laying, but I haven't seen it yet.