Hi Cathie, I suggest to leave the hole in the inner cover open. That will give you the same advantage as the space in a migratory lid. It is so easy to lift the roof every week or so, without disturbing the bees. Especially during this cold weather. You’d probably still need your smoker going plus wear a veil at least.
If I find the lid full of bees, then find it hard to put the lid back on without squashing bees, I just shake them all in front of the entrance, then smoke the top of the super to clear any bees away before replacing the lid.
I did 3 splits in the last 2 days. They all had one thing in common. A frame nearly full of pollen. I remove those to destroy to render the wax. Pollen is one thing they’re not short of.