I went through one of my hives yesterday that I had added empty frames betwen drawn ones. They were wired too. The bees drew their comb right on down. without a hitch. On another I had left an inch of comb and honey against the top bar. It is so amazing how they picked up right where I cut off. The new white comb up against the older brown stuff, even so far as mid way on walls, half the cell white half brown.
I would take a picture but we lost the camera.
BTW one thing I decided to do is mark the top of the top bar towards one end. That way they all face in one direction no matter what foolishnes I put them through. I noticed in my early attempts, that because I didn't realize what I was doing some of the combs were reversed, thereby messing up that Housel position thing, therefore the bees in that particular hive have built comb in every possible place except right down the middle.
September 8th 2007 is National Beekeeping Day
American Agriculture, its as close as the nearest Honeybee!