The description was good!  Here in NZ it gets called sieving, and its
one of those things you do when you have to do it, but it is to some
extent an admission of failure!  I've seen a 'permanent' box with
excluder nailed on, and aluminium sheet on inside walls (rather than
your use of silicon spray - that would be good.) which you would wet
slightly before starting to shake the bees.
 
The first 3 or 4 frames of shaking is a real mess, but if you use
*just enough* smoke, you can get them moving down.  And most of the
time you can spot the queen trying to get down between the wires.
Many times near the corners, but the flash of her abdomen as she
turns head down makes her noticeable.
 
It works, but isn't much fun.
  (\      Nick Wallingford
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NZ Beekeeping http://www.wave.co.nz/pages/nickw/nzbkpg.htm