Big 610 - have you tried using just plain frames with NO foundation and break up the brood nest with them and elevate the extra drawn comb into the second deep? It works for me all the time. I go from a 8 frame to 16 and it only takes them a little while to expand so that they can repair the brood nest. It keeps the young bees busy and keeps them going. It may take a little light feeding to get them to draw the frames out if you aren't on a flow. When I say light i'm talking quart or less every other day. Just enough to keep them busy but not enough to make them backfill the nest.