The Hayes study does look very interesting; I have a couple of questions,
however:

- Isn't there a risk of the QX becoming a 'pollen excluder' - that is, the
workers will plug the supers with pollen? That might be just as annoying as
the 'honey excluder' problem, especially for comb producers.

- What are the dimensions of a drone escape? I assume one can drill out a
standard cone, but to what diameter?

Martin Hall
London, UK