Thanks Dani I'll look him up.
Next year when hopefully I've more than one colony producing honey I'll do a trial. Photos the lot. It might be helpful to other new beekeepers to see what a waste or not they are and the problems using them in the UK.
I'll forecast the osr problem and only put them on after the flow, or maybe use one as a sacrificial frame just to see what happens (there's loads of the stuff around here).
I'll begin this summer by building the box to house them then shove it all at the back of the shed until next season.
Tbh I prefer comb honey so a moot point for me.
Back to the original wonderment about the queen trap thing I'm in no doubt that everyone thinks it's crap so that can be put to bed. Although I do wonder who this Finnish beekeeper is who recons he uses it on hundreds of hives
