jep, they have to go throu the queen excludor, it can't be that big of a deal, can it?
the acces should be "easy enough", i'm afraid, since i saw maybe 3 bees from 2 hives using the upper one, what if i messed up something and they can't use them (chances are slim, but there are).
nope, no mail on neither forum throu PM's. i sent you 3 PMs