I have been doing some harvesting with escapes and also have been doing
some shaking of combs to remove bees.  There is an interesting aspect that
I noted while doing this lately:
 
I've found that if you remove the supers from a given colony, and stack
them (cris-crossed) on the ground on the upturned hive cover, they soon
realize they are separated from the colony.  Some begin to fly up from the
supers and return home.  After say ten - twenty minutes or so, if you start
removing the combs one by one from the super and shake them, the bees are
already pretty upset (excited) due to this separation.  They are really
easy to shake off then, as they are quite "jumpy."  It doesn't take much
shaking at all to get the combs free of bees, sometimes even a slight
vibration will get them all off.  (I'm talking about capped-over combs
especially.)  They don't seem to come after me, they are more interested in
getting home.
 
If the combs are removed while the supers are on the hive, or without
allowing some time to pass, the girls tend to "hold on" much more
stubbornly.  I shake the combs over some tall weeds/goldenrod behind the
hives.  This way the have something to land on other than the hard ground.
Many catch their fall on the stems and slowly emerge from the weeds to fly
up and return to the hives. The combs are transferred to an empty super box
close by, or leaned against a tree/hive until there are a whole super's
worth free of bees, and ready to place in an empty super to take home.  I
haven't tried tipping, but I guess this involves a similar principle.  I
should add that if smoke is applied to the stack of supers just before one
starts to remove the combs to shake, the bees, already somewhat confused,
start running all over ("boiling") and this makes comb removal difficult.
So I refrain from smoking the stack of supers once removed.  Anyone
removing honey by shaking might wish to try this method, or start by
"tipping" and shake the remaining bees out after a while.