Last week I did a swarm cutout and measured the brood comb. Details are here:
I salvaged enough of the brood comb and wired it into three medium frames, putting it in the center of a medium brood chamber with SC foundation filling out the remaining frames. I looked into it for the first time yesterday and was happy to see the queen.
One thing I noticed right away. All the brood comb from the cutout was uniform in cell size, 5.08. The comb they have made on the 4.9 foundation is not uniform. There are transition cells all over the place. The foundation was made using the Lusby's mill. Dee has always made her foundation with only the bottom rhombus and no cell walls. It's a very shallow imprint as she wants to allow the (her) bees increase or decrease the cell size as needed. I have never had any of my bees draw out cells on this foundation anything like what her bees do, where a whole frame would be uniform 4.9 cell size. I get patches here and there. Here are bees that drew out uniform comb of 5.08 cell size, and yet when put on foundation, they can't do a very good job of going 1.08 smaller.
Once they get established and a cycle of brood has gone through, I'll take some pictures of the comb. I'm wondering if the cell imprint of the foundation is an issue here. I don't know of anyone else here who has used foundation milled from Dee's mill. Seems like everyone else is using foundation that has a more prominent cell imprint.