Hi SS4Luck,
right now you are using alot of realy small crickets and that makes it harder.
yet the best way is not to dump too much dust into your dusting cup.
I just take a tweezer and pick up a tiny amount with one of the tips and dump it into the dusting cup.
my crickets sometimes don't look like they have enough dust on them after they were shaken...AND THAT IS WHAT YOU ARE AIMING FOR.
done this way, your crickets will be lightly dusted and not look like ghosts.
Harry