That's nice Daniel. I would recommend "quick checking" your grafts at 24 to 48 hours and move all the takes into the center of the frames. It can save some of your good cells on the far ends of the frame from getting chilled on a cold night. Pay close attention to those outside ones, if they have more jelly in them than the center ones it's a pretty good indication of cold damage. It's surprising how even the strongest builder can pull off the outside ones on a cold night.