I have screen bottom, 1/4 hardware wire, queen extruder, open bottom,
and solid bottoms on nucs.  Also the bees must have a good time on the
screens as one will hear
them using the screen as a trampoline.

My bees, particularly the younger ones, use the screen as a trampoline, too.
I feel certain that they are having a good time.

Jeff Hills
Dorset, Vermont