Either works Simon. I don’t bother to interleave as it takes longer, is more disruptive to the bees and feels a bit contrived to me. Also combs are rarely perfectly parallel so high points may coincide and it’s more faff. Also combining a broodless with brooded part would mean the brood nest is broken up. Frankly, bar the smoke / air freshener the quicker and less faff the better to get the roof back on and let normal services resume.
All that being said, occasionally you can come back the next day to find a small pile of dead bees out the front. But not in the two times I have seen it enough to be fatal to the hive. And if you hadn’t done it, sometimes often those same bees would be doomed anyway, hence why you are doing it.
So it is not an operation that is totally foolproof, but what beekeeping job ever is?
All that being said, occasionally you can come back the next day to find a small pile of dead bees out the front. But not in the two times I have seen it enough to be fatal to the hive. And if you hadn’t done it, sometimes often those same bees would be doomed anyway, hence why you are doing it.
So it is not an operation that is totally foolproof, but what beekeeping job ever is?