I find life is easier without baggage.

I run my TBHs as I would run any hive: subject to its design limitations..

Since I am mean and build everything from pallets, they are ideal (I was edukated in Aberdeen and the meanness rubbed off:-)

I have OMFs closed off for winter.. and treat for varroa and have insulated roofs.. plus old underlay on top of the topbars.

Only -6C the coldest this winter , -18C prior two winters .. and bees survived - so far.