Regression of bees is a multi step process at times. For instance, you speak of the two most common ways to get bees into a hive. One method brings frames and bees which already have their own cell size. The second wihch is a package brings only bees. When you hive a NUC and want to regress them to natural cell you have a few options but ALL require you to phase out the older frames as new ones are drawn. Requires a few generations of bees to get them to natural in most cases. With packages it is a little easier as they will naturally draw smaller cell sizes from the get go even if they were on large cell when they were dumped into a package.If I start with a 5 frame nuc and empty frames will the bees naturally regress to small cell size? Same question with packages.
So, if I start a 5 frame nuc in 2 medium 8 frames with the other 11 frames of 4.9 wax foundation and I cycle the nuc frames out to the sides and then out will that regress them? Can I intersperse empty frames between the ones with foundation in the top super and get the same effect?Regression in my opinion and I think Michael B would agree, is using small cell foundation to force the bees into small cell which will help them build small cell naturally if that's your thing. Dumping a package or nuc onto foundationless frames is not actually regressing anything.
I have shaved my frames down to 1.25" in my Langs and have 11 frames in a 10 frame body. Foundationless. So far no issues with them building out too wide.