Hi Dee, I "was" replying from within my e-mail, so may have gotten some of the discussion out of context.
It's just one of those topics where everyone rushes out onto the gym floor, grabs up their dodge balls and gets ready to eliminate one another
Generally speaking, leaves new comers confused and others entrenched in whatever practice they adopted first.
I only have so much "free time" each day, so just lost my zest for point and counter-point on Queen Excluders. Aside from hearing a lecture many years ago, I put a feeder out in the bee yard during a summer dearth. Not wanting the bumble bees to soak up the nectar before the honey bees had their chance, I just snagged a Queen Excluder off the shelf and put it on the feeder. Like many honey bee observers, I began to notice the foraging honey bees having difficulty getting through the excluder. Others of course, did get through, some easily, others had to press-through. That observation led me on an informational quest to further understand what that barrier must be doing inside the hive.
All of my hives have landing board entrances as well as upper entrances. Aside from what many may think, lots of honey bees are a little lazy. With an excluder in place, those foragers that entered through the landing board entrance, were likely to have their supplies placed right in the brood frames, while those without excluders, travelled right up into the supers with no barrier to overcome.
Workers hatching in the brood areas were not all getting through the excluder either and began their store keeping dutie down in the brood frames. They have not done any flying yet, so don't gain access through the upper entrances. So what happens? "Most" of the colonies with excluders on, had much more honey down in the brood frames, starting with a ring around the circumference of the frames and eventually moving in as cells became available. This reduced the available cells for the queen to lay. So, aside from the lower productivity with the bees not moving so freely up and down the colony frames, brood rearing became limited.
Removed the queen excluders from those hives which were near honey-bound in the brood areas and that issue gradually went away as the upper supers began to fill more quickly.
Now, we have the flowsupers and the issue of potential laying in the flow frames presents a potential problem regarding function and cleanup. I only have three flowsuper colonies at the moment, and am giving the bees free use of the entire thing without excluders. If the Queen lays in those flow cells, then I will of course do a demonstration regarding how to cope with that issue.
Those are my thoughts, that's my logic. annnnnd my cappuccino break is over