Hi Kenr,
I'm from the midwest, Zone Five, and we go into winter with two deeps and maybe a little more. If you have two deeps and four honey supers on top of that, I would harvest those four (if you can do it without damaging the comb),then set them back on the hive. That will give you four mediums full of comb for next spring. I would NOT encourage robbing behavior. If your hive just consists of four mediums, I might consider harvesting one and placing it back on the hive. You still have 8-12 weeks of good weather.
I'm from the midwest, Zone Five, and we go into winter with two deeps and maybe a little more. If you have two deeps and four honey supers on top of that, I would harvest those four (if you can do it without damaging the comb),then set them back on the hive. That will give you four mediums full of comb for next spring. I would NOT encourage robbing behavior. If your hive just consists of four mediums, I might consider harvesting one and placing it back on the hive. You still have 8-12 weeks of good weather.