Thank-you, and good advice, which in the normal run of things, I would follow. But it's a dilemma, without a definite answer in my opinion ....like most beekeeping things
. I'm trying to keep the space open so that the scout bees can measure the volume accurately. I've already compromised by adding a number of drawn and undrawn frames. I have heard of people getting swarms by simply using foundation, but it doesn't appear to be a recommended approach.
If the bees create their own version of a beehive, it may be a PITA, but the bigger priority is to get them in there.