There are some excellent posts in the archives on mediums, and persuasive enough for me to buy ten
mediums to start my shift to all mediums.
I tried raising two queen colonies this year and doing so with deeps was too much heavy lifting. It would
have been much easier with mediums, which is one reason I am shifting. The other is standardization. You
can shift a honey super to be a brood super whenever you want, without having to make up a new brood box.
Easier to split, add colonies... check the archives for more good reasons.
My only concern is overwintering in Maine, with the one additional break between boxes that the bees are
faced with, but I doubt if that will be a major problem
Bill Truesdell
Bath, ME